diff --git a/sys/include/analog_util.h b/sys/include/analog_util.h
index b3aa408286..581ded7e30 100644
--- a/sys/include/analog_util.h
+++ b/sys/include/analog_util.h
@@ -46,7 +46,7 @@ int32_t adc_util_map(int sample, adc_res_t res, int32_t min, int32_t max);
 
 /**
  * @brief   Map a sampled ADC value to a given range (using floating point
- *          arithmetics)
+ *          arithmetic)
  *
  * @see adc_util_map
  *
diff --git a/sys/include/auto_init.h b/sys/include/auto_init.h
index f9a87c7963..4f684099fc 100644
--- a/sys/include/auto_init.h
+++ b/sys/include/auto_init.h
@@ -37,7 +37,7 @@
  * automatically using the `auto_init` module.
  * To do so, each driver implementation must provide default initialization
  * parameters in the `DRIVER_params.h` file.
- * These parameters can be overriden from the application code in several ways
+ * These parameters can be overridden from the application code in several ways
  * (examples with the @ref drivers_bmp180 oversampling parameter
  * `BMP180_PARAM_OVERSAMPLING`):
  *
@@ -100,7 +100,7 @@ extern "C" {
  * @brief Initializes all high level modules that do not require parameters for
  *        initialization or uses default values.
  *
- *        This function gets called - if not explicitely disabled - by @ref
+ *        This function gets called - if not explicitly disabled - by @ref
  *        kernel_init right before jumping into @e main.
  */
 void auto_init(void);
diff --git a/sys/include/can/isotp.h b/sys/include/can/isotp.h
index 2f2ded03e6..35989c77e5 100644
--- a/sys/include/can/isotp.h
+++ b/sys/include/can/isotp.h
@@ -195,7 +195,7 @@ int isotp_bind(struct isotp *isotp, can_reg_entry_t *entry, void *arg,
  * Unset the filter on the DLL and remove the channel from the list
  * of bound channels
  *
- * @param isotp           the channel to relase
+ * @param isotp           the channel to release
  *
  * @return 0 on success, < 0 on error
  */
diff --git a/sys/include/can/raw.h b/sys/include/can/raw.h
index b8ef3657e3..27aa881338 100644
--- a/sys/include/can/raw.h
+++ b/sys/include/can/raw.h
@@ -72,7 +72,7 @@ int raw_can_send(int ifnum, const struct can_frame *frame, kernel_pid_t pid);
  * @param[in] ifnum  the interface number used to send the frame
  * @param[in] handle the handle of the frame to abort,
  *                   it must be the value returned by raw_can_send
- * @return 0 on succes
+ * @return 0 on success
  * @return < 0 on error (-ENODEV)
  */
 int raw_can_abort(int ifnum, int handle);
diff --git a/sys/include/crypto/chacha.h b/sys/include/crypto/chacha.h
index c8b9eac5ee..8952f5ad3e 100644
--- a/sys/include/crypto/chacha.h
+++ b/sys/include/crypto/chacha.h
@@ -60,7 +60,7 @@ typedef struct {
  * @param[in]  nonce   IV / nonce to use.
  *
  * @return     `== 0` on success.
- * @return     `< 0` if an illegal value for @p rounds or @p keylen was suppplied.
+ * @return     `< 0` if an illegal value for @p rounds or @p keylen was supplied.
  */
 int chacha_init(chacha_ctx *ctx,
                 unsigned rounds,
diff --git a/sys/include/crypto/ciphers.h b/sys/include/crypto/ciphers.h
index 6d28756ae0..52db1b818b 100644
--- a/sys/include/crypto/ciphers.h
+++ b/sys/include/crypto/ciphers.h
@@ -63,7 +63,7 @@ extern "C" {
 #define CIPHER_ERR_INVALID_LENGTH     -4
 #define CIPHER_ERR_ENC_FAILED         -5
 #define CIPHER_ERR_DEC_FAILED         -6
-/** Is returned by the cipher_init functions, if the coresponding alogirithm has not been included in the build */
+/** Is returned by the cipher_init functions, if the corresponding alogirithm has not been included in the build */
 #define CIPHER_ERR_BAD_CONTEXT_SIZE    0
 /**  Returned by cipher_init upon successful initialization of a cipher. */
 #define CIPHER_INIT_SUCCESS            1
diff --git a/sys/include/crypto/modes/cbc.h b/sys/include/crypto/modes/cbc.h
index 74ee616a92..5670cf0654 100644
--- a/sys/include/crypto/modes/cbc.h
+++ b/sys/include/crypto/modes/cbc.h
@@ -40,7 +40,7 @@ extern "C" {
  *
  * @return            <0 on error
  * @return            CIPHER_ERR_INVALID_LENGTH when input_len % BLOCK_SIZE != 0
- * @return            CIPHER_ERR_ENC_FAILED on internal encrption error
+ * @return            CIPHER_ERR_ENC_FAILED on internal encryption error
  * @return            otherwise number of input bytes that aren't consumed
  */
 int cipher_encrypt_cbc(cipher_t *cipher, uint8_t iv[16], const uint8_t *input,
diff --git a/sys/include/crypto/modes/ocb.h b/sys/include/crypto/modes/ocb.h
index d5afbb80ad..1e22071bc2 100644
--- a/sys/include/crypto/modes/ocb.h
+++ b/sys/include/crypto/modes/ocb.h
@@ -65,7 +65,7 @@ extern "C" {
  * @param cipher           Already initialized cipher struct
  * @param auth_data        Additional data to authenticate in MAC
  * @param auth_data_len    Length of additional data
- * @param tag_len       Length of the appended tag (at leat 1, at most 16 bytes)
+ * @param tag_len       Length of the appended tag (at least 1, at most 16 bytes)
  *
  * @param nonce            Nonce for the encryption (must be unique)
  * @param nonce_len        Length of the nonce in bytes (at most 15)
@@ -88,7 +88,7 @@ int32_t cipher_encrypt_ocb(cipher_t *cipher, uint8_t *auth_data,
  * @param cipher           Already initialized cipher struct
  * @param auth_data        Additional data to authenticate in MAC
  * @param auth_data_len    Length of additional data
- * @param tag_len       Length of the appended tag (at leat 1, at most 16 bytes)
+ * @param tag_len       Length of the appended tag (at least 1, at most 16 bytes)
  *
  * @param nonce            Nonce for the encryption (must be unique)
  * @param nonce_len        Length of the nonce in bytes (at most 15)
diff --git a/sys/include/div.h b/sys/include/div.h
index bdb633f184..6c044f76bc 100644
--- a/sys/include/div.h
+++ b/sys/include/div.h
@@ -79,8 +79,8 @@ static inline uint64_t div_u64_by_15625(uint64_t val)
  * @brief Integer divide val by 125
  *
  * This function can be used to convert uint64_t microsecond times (or
- * intervals) to miliseconds and store them in uint32_t variables, with up to
- * ~50 days worth of miliseconds ((2**32*1000) -1).
+ * intervals) to milliseconds and store them in uint32_t variables, with up to
+ * ~50 days worth of milliseconds ((2**32*1000) -1).
  * Use e.g.,  ms = div_u64_by_125(microseconds >> 3)
  *
  * @pre val <= 536870911999 ((2**32 * 125) -1)
diff --git a/sys/include/embUnit/TestResult.h b/sys/include/embUnit/TestResult.h
index 06f1f932ce..d3f555a571 100644
--- a/sys/include/embUnit/TestResult.h
+++ b/sys/include/embUnit/TestResult.h
@@ -58,7 +58,7 @@ struct __TestResult {
         (TestListner*)listener,\
     }
 
-void TestResult_init(TestResult* self,TestListner* listner);
+void TestResult_init(TestResult* self,TestListner* listener);
 void TestResult_startTest(TestResult* self,Test* test);
 void TestResult_endTest(TestResult* self,Test* test);
 void TestResult_addFailure(TestResult* self,Test* test,const char* msg,int line,const char* file);
diff --git a/sys/include/event/timeout.h b/sys/include/event/timeout.h
index cb55e888f5..774e22f905 100644
--- a/sys/include/event/timeout.h
+++ b/sys/include/event/timeout.h
@@ -12,7 +12,7 @@
  * @ingroup     sys_event
  * @brief       Provides functionality to trigger events after timeout
  *
- * event_timeout intentionally does't extend event structures in order to
+ * event_timeout intentionally doesn't extend event structures in order to
  * support events that are integrated in larger structs intrusively.
  *
  * Example:
diff --git a/sys/include/fmt.h b/sys/include/fmt.h
index b1e0a286bb..f38473b631 100644
--- a/sys/include/fmt.h
+++ b/sys/include/fmt.h
@@ -381,7 +381,7 @@ uint32_t scn_u32_dec(const char *str, size_t n);
  *
  * Will convert up to @p n char. Stop at any non-hexadecimal or '\0' character
  *
- * @param[in]   str Pointer to tring to read from
+ * @param[in]   str Pointer to string to read from
  * @param[in]   n   Maximum number of characters to consider
  *
  * @return  converted uint32_t value
diff --git a/sys/include/hashes/cmac.h b/sys/include/hashes/cmac.h
index 0b92473a0b..cfa6518c26 100644
--- a/sys/include/hashes/cmac.h
+++ b/sys/include/hashes/cmac.h
@@ -40,7 +40,7 @@ extern "C" {
 typedef struct {
     /** AES128 context */
     cipher_t aes_ctx;
-    /** auxiliar array for CMAC calculations **/
+    /** auxiliary array for CMAC calculations **/
     uint8_t X[CMAC_BLOCK_SIZE];
     /** current last block **/
     uint8_t M_last[CMAC_BLOCK_SIZE];
diff --git a/sys/include/net/csma_sender.h b/sys/include/net/csma_sender.h
index 4abb307200..e495a7f838 100644
--- a/sys/include/net/csma_sender.h
+++ b/sys/include/net/csma_sender.h
@@ -104,7 +104,7 @@ int csma_sender_csma_ca_send(netdev_t *dev, iolist_t *iolist,
                              const csma_sender_conf_t *conf);
 
 /**
- * @brief   Sends a 802.15.4 frame when medium is avaiable.
+ * @brief   Sends a 802.15.4 frame when medium is available.
  *
  * @pre `dev != NULL`
  *
diff --git a/sys/include/net/fib/table.h b/sys/include/net/fib/table.h
index 3d14c773b2..d6e7e7704b 100644
--- a/sys/include/net/fib/table.h
+++ b/sys/include/net/fib/table.h
@@ -117,7 +117,7 @@ typedef struct {
     *   This value indicates what is stored in `data` of this table
     */
     uint8_t table_type;
-    /** the maximim number of entries in this FIB table */
+    /** the maximum number of entries in this FIB table */
     size_t size;
     /** table access mutex to grant exclusive operations on calls */
     mutex_t mtx_access;
diff --git a/sys/include/net/gnrc/icmpv6/error.h b/sys/include/net/gnrc/icmpv6/error.h
index 60b00368bd..e1aad9f3b7 100644
--- a/sys/include/net/gnrc/icmpv6/error.h
+++ b/sys/include/net/gnrc/icmpv6/error.h
@@ -85,7 +85,7 @@ void gnrc_icmpv6_error_time_exc_send(uint8_t code,
  *          multicast
  *
  * @param[in] code      The [code for the message](@ref net_icmpv6_error_param_prob_codes).
- * @param[in] ptr       Pointer to the errorneous octet in @p orig_pkt.
+ * @param[in] ptr       Pointer to the erroneous octet in @p orig_pkt.
  * @param[in] orig_pkt  The invoking packet.
  */
 void gnrc_icmpv6_error_param_prob_send(uint8_t code, void *ptr,
diff --git a/sys/include/net/gnrc/ipv6/ext/frag.h b/sys/include/net/gnrc/ipv6/ext/frag.h
index 4c9b7eaecb..4c571dd122 100644
--- a/sys/include/net/gnrc/ipv6/ext/frag.h
+++ b/sys/include/net/gnrc/ipv6/ext/frag.h
@@ -126,7 +126,7 @@ void gnrc_ipv6_ext_frag_send(gnrc_ipv6_ext_frag_send_t *snd_buf);
  *                  the fragment header in the first snip.
  *
  * @return  The reassembled packet when @p pkt completed the reassembly
- * @return  NULL, when there are still fragments missing or an error occured
+ * @return  NULL, when there are still fragments missing or an error occurred
  *          during reassembly
  */
 gnrc_pktsnip_t *gnrc_ipv6_ext_frag_reass(gnrc_pktsnip_t *pkt);
diff --git a/sys/include/net/gnrc/ipv6/hdr.h b/sys/include/net/gnrc/ipv6/hdr.h
index 00aea45726..daf82d3347 100644
--- a/sys/include/net/gnrc/ipv6/hdr.h
+++ b/sys/include/net/gnrc/ipv6/hdr.h
@@ -7,7 +7,7 @@
  */
 
 /**
- * @defgroup    net_gnrc_ipv6_hdr IPv6 header defintions
+ * @defgroup    net_gnrc_ipv6_hdr IPv6 header definitions
  * @ingroup     net_gnrc_ipv6
  * @{
  *
diff --git a/sys/include/net/gnrc/ipv6/nib/pl.h b/sys/include/net/gnrc/ipv6/nib/pl.h
index 88fbeda7f9..b18ba6fc55 100644
--- a/sys/include/net/gnrc/ipv6/nib/pl.h
+++ b/sys/include/net/gnrc/ipv6/nib/pl.h
@@ -13,7 +13,7 @@
  * @{
  *
  * @file
- * @brief   Prefix list defintions
+ * @brief   Prefix list definitions
  *
  * @author  Martine Lenders <mlenders@inf.fu-berlin.de>
  */
diff --git a/sys/include/net/gnrc/lwmac/timeout.h b/sys/include/net/gnrc/lwmac/timeout.h
index 9d9945b401..dc47f90a8f 100644
--- a/sys/include/net/gnrc/lwmac/timeout.h
+++ b/sys/include/net/gnrc/lwmac/timeout.h
@@ -90,7 +90,7 @@ void gnrc_lwmac_reset_timeouts(gnrc_netif_t *netif);
 /**
  * @brief   Make a specific LWMAC timeout expired.
  *
- * @param[in,out] timeout   LWMAC tiemout
+ * @param[in,out] timeout   LWMAC timeout
  */
 void gnrc_lwmac_timeout_make_expire(gnrc_lwmac_timeout_t *timeout);
 
diff --git a/sys/include/net/gnrc/lwmac/types.h b/sys/include/net/gnrc/lwmac/types.h
index e728a71cfe..9057093803 100644
--- a/sys/include/net/gnrc/lwmac/types.h
+++ b/sys/include/net/gnrc/lwmac/types.h
@@ -167,7 +167,7 @@ typedef enum {
  * @brief   LWMAC timeout types
  */
 typedef enum {
-    GNRC_LWMAC_TIMEOUT_DISABLED,                /**< Timeout is diabled */
+    GNRC_LWMAC_TIMEOUT_DISABLED,                /**< Timeout is disabled */
     GNRC_LWMAC_TIMEOUT_WR,                      /**< WR timeout, waiting WA */
     GNRC_LWMAC_TIMEOUT_NO_RESPONSE,             /**< Maximum WR duration timeout awaiting WA */
     GNRC_LWMAC_TIMEOUT_DATA,                    /**< Timeout awaiting data packet from receiver */
@@ -193,7 +193,7 @@ typedef struct {
 typedef struct lwmac {
     gnrc_lwmac_state_t state;                                   /**< Internal state of MAC layer */
     uint32_t last_wakeup;                                       /**< Used to calculate wakeup times */
-    uint8_t lwmac_info;                                         /**< LWMAC's internal informations (flags) */
+    uint8_t lwmac_info;                                         /**< LWMAC's internal information (flags) */
     gnrc_lwmac_timeout_t timeouts[GNRC_LWMAC_TIMEOUT_COUNT];    /**< Store timeouts used for protocol */
 
 #if (GNRC_MAC_ENABLE_DUTYCYCLE_RECORD == 1)
diff --git a/sys/include/net/gnrc/netif.h b/sys/include/net/gnrc/netif.h
index cf73747852..ff1b2f39f0 100644
--- a/sys/include/net/gnrc/netif.h
+++ b/sys/include/net/gnrc/netif.h
@@ -278,7 +278,7 @@ gnrc_netif_t *gnrc_netif_iter(const gnrc_netif_t *prev);
 gnrc_netif_t *gnrc_netif_get_by_pid(kernel_pid_t pid);
 
 /**
- * @brief   Gets the (unicast on anycast) IPv6 addresss of an interface (if IPv6
+ * @brief   Gets the (unicast on anycast) IPv6 address of an interface (if IPv6
  *          is supported)
  *
  * @pre `netif != NULL`
diff --git a/sys/include/net/gnrc/netif/ipv6.h b/sys/include/net/gnrc/netif/ipv6.h
index 94edf3b592..a8b6911025 100644
--- a/sys/include/net/gnrc/netif/ipv6.h
+++ b/sys/include/net/gnrc/netif/ipv6.h
@@ -11,7 +11,7 @@
  * @{
  *
  * @file
- * @brief   IPv6 defintions for @ref net_gnrc_netif
+ * @brief   IPv6 definitions for @ref net_gnrc_netif
  *
  * @author  Martine Lenders <mlenders@inf.fu-berlin.de>
  */
diff --git a/sys/include/net/gnrc/netreg.h b/sys/include/net/gnrc/netreg.h
index f2270f2693..a31782483e 100644
--- a/sys/include/net/gnrc/netreg.h
+++ b/sys/include/net/gnrc/netreg.h
@@ -40,7 +40,7 @@ extern "C" {
 /**
  *  @brief  The type of the netreg entry.
  *
- *          Different types are availalbe dependent on the used modules.
+ *          Different types are available dependent on the used modules.
  */
 typedef enum {
     /**
diff --git a/sys/include/net/gnrc/rpl.h b/sys/include/net/gnrc/rpl.h
index 39a08b75f4..b004af2a58 100644
--- a/sys/include/net/gnrc/rpl.h
+++ b/sys/include/net/gnrc/rpl.h
@@ -522,7 +522,7 @@ gnrc_rpl_instance_t *gnrc_rpl_root_init(uint8_t instance_id, ipv6_addr_t *dodag_
 void gnrc_rpl_send_DIO(gnrc_rpl_instance_t *instance, ipv6_addr_t *destination);
 
 /**
- * @brief   Send a DIS of the @p instace to the @p destination.
+ * @brief   Send a DIS of the @p instance to the @p destination.
  *
  * @param[in] instance          Pointer to the RPL instance, optional.
  * @param[in] destination       IPv6 address of the destination.
diff --git a/sys/include/net/gnrc/rpl/p2p.h b/sys/include/net/gnrc/rpl/p2p.h
index 4dbe19b9d2..252586eaa7 100644
--- a/sys/include/net/gnrc/rpl/p2p.h
+++ b/sys/include/net/gnrc/rpl/p2p.h
@@ -126,7 +126,7 @@ extern const uint8_t gnrc_rpl_p2p_lifetime_lookup[4];
  * @param[in] instance_id       Id of the instance
  * @param[in] dodag_id          Id of the DODAG
  * @param[in] target            Target of the P2P-RPL routes discovery
- * @param[in] gen_inst_id       Flag indicating whether to generate a local isntance id.
+ * @param[in] gen_inst_id       Flag indicating whether to generate a local instance id.
  *                              If true, @p instance_id will be ignored
  *
  * @return  Pointer to the new Instance, on success.
diff --git a/sys/include/net/gnrc/tcp.h b/sys/include/net/gnrc/tcp.h
index e2be82ed89..797ea1efd4 100644
--- a/sys/include/net/gnrc/tcp.h
+++ b/sys/include/net/gnrc/tcp.h
@@ -78,7 +78,7 @@ void gnrc_tcp_tcb_init(gnrc_tcp_tcb_t *tcb);
  *            -ENOMEM if the receive buffer for the TCB could not be allocated.
  *            -EADDRINUSE if @p local_port is already used by another connection.
  *            -ETIMEDOUT if the connection could not be opened.
- *            -ECONNREFUSED if the connection was resetted by the peer.
+ *            -ECONNREFUSED if the connection was reset by the peer.
  */
 int gnrc_tcp_open_active(gnrc_tcp_tcb_t *tcb,  uint8_t address_family,
                          char *target_addr, uint16_t target_port,
@@ -100,7 +100,7 @@ int gnrc_tcp_open_active(gnrc_tcp_tcb_t *tcb,  uint8_t address_family,
  *                                 If local_addr == NULL, address_family is ignored.
  * @param[in]     local_addr       If not NULL the connection is bound to @p local_addr.
  *                                 If NULL a connection request to all local ip
- *                                 addresses is valied.
+ *                                 addresses is valid.
  * @param[in]     local_port       Port number to listen on.
  *
  * @returns   0 on success.
@@ -132,7 +132,7 @@ int gnrc_tcp_open_passive(gnrc_tcp_tcb_t *tcb, uint8_t address_family,
  *
  * @returns   The number of successfully transmitted bytes.
  *            -ENOTCONN if connection is not established.
- *            -ECONNRESET if connection was resetted by the peer.
+ *            -ECONNRESET if connection was reset by the peer.
  *            -ECONNABORTED if the connection was aborted.
  *            -ETIMEDOUT if @p user_timeout_duration_us expired.
  */
@@ -163,7 +163,7 @@ ssize_t gnrc_tcp_send(gnrc_tcp_tcb_t *tcb, const void *data, const size_t len,
  *            0, if the connection is closing and no further data can be read.
  *            -ENOTCONN if connection is not established.
  *            -EAGAIN if  user_timeout_duration_us is zero and no data is available.
- *            -ECONNRESET if connection was resetted by the peer.
+ *            -ECONNRESET if connection was reset by the peer.
  *            -ECONNABORTED if the connection was aborted.
  *            -ETIMEDOUT if @p user_timeout_duration_us expired.
  */
@@ -196,7 +196,7 @@ void gnrc_tcp_abort(gnrc_tcp_tcb_t *tcb);
  * @param[in] hdr          Gnrc_pktsnip that contains TCP header.
  * @param[in] pseudo_hdr   Gnrc_pktsnip that contains network layer header.
  *
- * @returns   0 on succees.
+ * @returns   0 on success.
  *            -EFAULT if @p hdr or pseudo_hdr were NULL
  *            -EBADMSG if @p hdr is not of type GNRC_NETTYPE_TCP
  *            -ENOENT if @p pseudo_hdr protocol is unsupported.
diff --git a/sys/include/net/gnrc/tcp/config.h b/sys/include/net/gnrc/tcp/config.h
index 8237e744f4..b5f7c56f92 100644
--- a/sys/include/net/gnrc/tcp/config.h
+++ b/sys/include/net/gnrc/tcp/config.h
@@ -41,7 +41,7 @@ extern "C" {
 #endif
 
 /**
- * @brief Maximum Segement Size (MSS).
+ * @brief Maximum Segment Size (MSS).
  */
 #ifndef GNRC_TCP_MSS
 #ifdef  MODULE_GNRC_IPV6
diff --git a/sys/include/net/ieee802154.h b/sys/include/net/ieee802154.h
index 32486d1611..19da9c5d64 100644
--- a/sys/include/net/ieee802154.h
+++ b/sys/include/net/ieee802154.h
@@ -97,7 +97,7 @@ extern "C" {
 #define IEEE802154_FRAME_LEN_MAX        (127U)  /**< maximum frame length */
 
 /**
- * @brief   Special address defintions
+ * @brief   Special address definitions
  * @{
  */
 /**
diff --git a/sys/include/net/ipv6/addr.h b/sys/include/net/ipv6/addr.h
index 376d8598fd..c91ac23d48 100644
--- a/sys/include/net/ipv6/addr.h
+++ b/sys/include/net/ipv6/addr.h
@@ -202,7 +202,7 @@ typedef union {
  *      </a>
  */
 /**
- * @brief   The address is transient, i.e. not well-known, permanantly
+ * @brief   The address is transient, i.e. not well-known, permanently
  *          assigned address by IANA.
  */
 #define IPV6_ADDR_MCAST_FLAG_TRANSIENT      (0x01)
@@ -746,16 +746,16 @@ char *ipv6_addr_split_str(char *addr_str, char separator);
 /**
  * @brief split IPv6 address string representation
  *
- * @note Will change @p seperator position in @p addr_str to '\0'
+ * @note Will change @p separator position in @p addr_str to '\0'
  *
  * @param[in,out]   addr_str    Address to split
- * @param[in]       seperator   Seperator char to use
+ * @param[in]       separator   Separator char to use
  * @param[in]       _default    Default value
  *
  * @return      atoi(string after split)
- * @return      @p _default if no string after @p seperator
+ * @return      @p _default if no string after @p separator
  */
-int ipv6_addr_split_int(char *addr_str, char seperator, int _default);
+int ipv6_addr_split_int(char *addr_str, char separator, int _default);
 
 /**
  * @brief split IPv6 prefix string representation
diff --git a/sys/include/net/sixlowpan.h b/sys/include/net/sixlowpan.h
index 382136048d..7e4dcd27df 100644
--- a/sys/include/net/sixlowpan.h
+++ b/sys/include/net/sixlowpan.h
@@ -13,7 +13,7 @@
  * @{
  *
  * @file
- * @brief   6LoWPAN dispatch type and helper function definitons.
+ * @brief   6LoWPAN dispatch type and helper function definitions.
  *
  * @author  Martine Lenders <mlenders@inf.fu-berlin.de>
  */
@@ -316,7 +316,7 @@ static inline uint16_t sixlowpan_frag_offset(sixlowpan_frag_n_t *hdr)
 #define SIXLOWPAN_IPHC_HDR_LEN      (2)
 
 /**
- * @brief   6LoWPAN context idendifier extension header length
+ * @brief   6LoWPAN context identifier extension header length
  */
 #define SIXLOWPAN_IPHC_CID_EXT_LEN  (1)
 
diff --git a/sys/include/net/tcp.h b/sys/include/net/tcp.h
index 899893c612..f106302788 100644
--- a/sys/include/net/tcp.h
+++ b/sys/include/net/tcp.h
@@ -49,7 +49,7 @@ extern "C" {
  * @brief TCP option "length"-field values.
  * @{
  */
-#define TCP_OPTION_LENGTH_MIN (2U)    /**< Mimimum amount of bytes needed for an option with a length field */
+#define TCP_OPTION_LENGTH_MIN (2U)    /**< Minimum amount of bytes needed for an option with a length field */
 #define TCP_OPTION_LENGTH_MSS (0x04)  /**< MSS Option Size always 4 */
 /** @} */
 
diff --git a/sys/include/phydat.h b/sys/include/phydat.h
index 3d9c2e65fd..1433e65579 100644
--- a/sys/include/phydat.h
+++ b/sys/include/phydat.h
@@ -124,7 +124,7 @@ enum {
 /**
  * @brief   Generic data structure for expressing physical values
  *
- * Physical data is expressed in a 3-dimensional touple of values. In addition
+ * Physical data is expressed in a 3-dimensional tuple of values. In addition
  * to the data fields, this struct contains further the (physical) unit and the
  * scale factor of the data. The unit is expressed as constant. The scale factor
  * is expressed as power of 10 (10^factor).
diff --git a/sys/include/puf_sram.h b/sys/include/puf_sram.h
index 74abe2576f..652a54b18a 100644
--- a/sys/include/puf_sram.h
+++ b/sys/include/puf_sram.h
@@ -61,7 +61,7 @@ extern uint32_t puf_sram_state;
           calls @p puf_sram_generate
  *
  * @param[in] ram pointer to SRAM memory
- * @param[in] len length of the memroy to consider
+ * @param[in] len length of the memory to consider
  *
  */
 void puf_sram_init(const uint8_t *ram, size_t len);
@@ -71,7 +71,7 @@ void puf_sram_init(const uint8_t *ram, size_t len);
  *        to the global variable @p puf_sram_seed and returns the value
  *
  * @param[in] ram pointer to SRAM memory
- * @param[in] len length of the memroy to consider
+ * @param[in] len length of the memory to consider
  */
 void puf_sram_generate(const uint8_t *ram, size_t len);
 
diff --git a/sys/include/suit/v4/suit.h b/sys/include/suit/v4/suit.h
index 889e934be4..d0e3354dcc 100644
--- a/sys/include/suit/v4/suit.h
+++ b/sys/include/suit/v4/suit.h
@@ -266,7 +266,7 @@ int suit_cbor_subparse(nanocbor_value_t *bseq, nanocbor_value_t *it);
  * @param[in]   offset  offset to write to on flash
  * @param[in]   buf     bytes to write
  * @param[in]   len     length of bytes to write
- * @param[in]   more    whether more data is comming
+ * @param[in]   more    whether more data is coming
  *
  * @return              0 on success
  * @return              <0 on error
diff --git a/sys/include/tm.h b/sys/include/tm.h
index ab954d529c..131995a918 100644
--- a/sys/include/tm.h
+++ b/sys/include/tm.h
@@ -77,7 +77,7 @@ int tm_doomsday(int year) CONST;
 
 /**
  * @brief           Calculates the day of the year and the weekday of a given date.
- * @details         Illegal dates are not catched.
+ * @details         Illegal dates are not caught.
  * @param[in]       year   The year. Probably should be ≥ 1582, but needs to be ≥ 1.
  * @param[in]       mon    The month, TM_MON_JAN to TM_MON_DEC.
  * @param[in]       mday   The day in the month, 1 to 31.
diff --git a/sys/include/universal_address.h b/sys/include/universal_address.h
index 55689ee980..9f6c4bcdc5 100644
--- a/sys/include/universal_address.h
+++ b/sys/include/universal_address.h
@@ -101,7 +101,7 @@ void universal_address_rem(universal_address_container_t *entry);
  *                           this value is overwritten with the actual size required
  *
  * @return addr if the address is copied to the addr destination
- * @return NULL if the size is unsufficient for copy
+ * @return NULL if the size is insufficient for copy
  */
 uint8_t* universal_address_get_address(universal_address_container_t *entry,
                                        uint8_t *addr, size_t *addr_size);
@@ -123,7 +123,7 @@ uint8_t* universal_address_get_address(universal_address_container_t *entry,
  *                                           (trailing '0's in @p entry)
  * @return UNIVERSAL_ADDRESS_IS_ALL_ZERO_ADDRESS if the entry address is all `0`s
  *                                               and considered as default route
- * @return -ENOENT if the given adresses do not match
+ * @return -ENOENT if the given addresses do not match
  */
 int universal_address_compare(universal_address_container_t *entry,
                               uint8_t *addr, size_t *addr_size_in_bits);
@@ -145,7 +145,7 @@ int universal_address_compare(universal_address_container_t *entry,
 * @return UNIVERSAL_ADDRESS_EQUAL if the entries are equal
 * @return UNIVERSAL_ADDRESS_MATCHING_PREFIX if the entry matches to a certain prefix
 *                                           (trailing '0's in @p prefix)
-* @return -ENOENT if the given adresses do not match
+* @return -ENOENT if the given addresses do not match
 */
 int universal_address_compare_prefix(universal_address_container_t *entry,
                             uint8_t *prefix, size_t prefix_size_in_bits);
diff --git a/sys/include/usb/usbus/control.h b/sys/include/usb/usbus/control.h
index 75ebb1d171..ed4ea56221 100644
--- a/sys/include/usb/usbus/control.h
+++ b/sys/include/usb/usbus/control.h
@@ -35,7 +35,7 @@ typedef struct {
     size_t start;                   /**< Start offset of the current part */
     size_t cur;                     /**< Current position in the message  */
     size_t len;                     /**< Length of the full message       */
-    size_t transferred;             /**< Number of bytes transferred       */
+    size_t transferred;             /**< Number of bytes transferred      */
     size_t reqlen;                  /**< Maximum length of the request    */
 } usbus_control_slicer_t;
 
diff --git a/sys/include/uuid.h b/sys/include/uuid.h
index ac050278aa..65063c9fb8 100644
--- a/sys/include/uuid.h
+++ b/sys/include/uuid.h
@@ -156,7 +156,7 @@ void uuid_to_string(const uuid_t *uuid, char *str);
  * @param[out]  uuid    out UUID
  * @param[in]   str     null-terminated input UUID string, must be UUID_STR_LEN bytes
  *
- * @return 0 on succes, < 0 if @p str is not valid
+ * @return 0 on success, < 0 if @p str is not valid
  */
 int uuid_from_string(uuid_t *uuid, const char *str);