diff --git a/src/fw/applib/bluetooth/ble_ibeacon.h b/src/fw/applib/bluetooth/ble_ibeacon.h
index 17800ed9..5f527191 100644
--- a/src/fw/applib/bluetooth/ble_ibeacon.h
+++ b/src/fw/applib/bluetooth/ble_ibeacon.h
@@ -90,7 +90,7 @@ void ble_ibeacon_destroy(BLEiBeacon *ibeacon);
 //! @param rssi The RSSI of the advertisement
 //! @param[out] ibeacon_out Will contain the parsed iBeacon data if the call
 //! returns true.
-//! @return true if the data element was succesfully parsed as iBeacon,
+//! @return true if the data element was successfully parsed as iBeacon,
 //! false if the data element could not be parsed as iBeacon.
 bool ble_ibeacon_parse(const BLEAdData *ad, int8_t rssi,
                        BLEiBeacon *ibeacon_out);
diff --git a/src/fw/comm/ble/gap_le_scan.h b/src/fw/comm/ble/gap_le_scan.h
index 9f8bd9f0..8d148393 100644
--- a/src/fw/comm/ble/gap_le_scan.h
+++ b/src/fw/comm/ble/gap_le_scan.h
@@ -52,12 +52,12 @@ typedef struct {
 //! reports and scan responses will be buffered. A PEBBLE_BLE_SCAN_EVENT will
 //! be generated when there is data to be collected.
 //! @see gap_le_consume_scan_results
-//! @return 0 if scanning started succesfully or an error code otherwise.
+//! @return 0 if scanning started successfully or an error code otherwise.
 bool gap_le_start_scan(void);
 
 //! @internal
 //! Stops scanning.
-//! @return 0 if scanning stopped succesfully or an error code otherwise.
+//! @return 0 if scanning stopped successfully or an error code otherwise.
 bool gap_le_stop_scan(void);
 
 //! @internal
diff --git a/src/fw/comm/ble/kernel_le_client/ams/ams_util.h b/src/fw/comm/ble/kernel_le_client/ams/ams_util.h
index 5eb7a741..7541be64 100644
--- a/src/fw/comm/ble/kernel_le_client/ams/ams_util.h
+++ b/src/fw/comm/ble/kernel_le_client/ams/ams_util.h
@@ -26,7 +26,7 @@
 //! @param number_str_length The length of the number_str buffer.
 //! @param multiplier The factor by which to multiply the parsed number.
 //! @param[out] number_out If the parsing was successful, the result will be stored here.
-//! @return True if the string was parsed succesfully.
+//! @return True if the string was parsed successfully.
 //! @note The first comma or period found is treated as decimal separator. Any subsequent comma or
 //! period that is found will cause parsing to be aborted and return false.
 //! @note An empty / zero-length string still will fail to parse and return false.
diff --git a/src/fw/drivers/rng.h b/src/fw/drivers/rng.h
index 81529e24..163eea1f 100644
--- a/src/fw/drivers/rng.h
+++ b/src/fw/drivers/rng.h
@@ -20,5 +20,5 @@
 #include <stdbool.h>
 
 //! @param rand_out Storage for the 32-bit random number generated by the STM32
-//! @return True if a random number was succesfully generated
+//! @return True if a random number was successfully generated
 bool rng_rand(uint32_t *rand_out);
diff --git a/src/fw/services/normal/app_message/app_message_receiver.c b/src/fw/services/normal/app_message/app_message_receiver.c
index 8736ffbc..26cde27f 100644
--- a/src/fw/services/normal/app_message/app_message_receiver.c
+++ b/src/fw/services/normal/app_message/app_message_receiver.c
@@ -103,7 +103,7 @@ static Receiver *prv_app_message_receiver_prepare(CommSession *session,
   rcv->header_bytes_remaining = header_bytes_remaining;
 
   // Always forward the header to default system receiver as well, we'll cancel it later on if the
-  // message was written succesfully to the app inbox.
+  // message was written successfully to the app inbox.
   if (!prv_fwd_prepare(rcv, session, header_bytes_remaining)) {
     kernel_free(rcv);
     return NULL;
diff --git a/src/fw/services/normal/blob_db/api.h b/src/fw/services/normal/blob_db/api.h
index 76cc992e..6907e246 100644
--- a/src/fw/services/normal/blob_db/api.h
+++ b/src/fw/services/normal/blob_db/api.h
@@ -69,7 +69,7 @@ typedef void (*BlobDBInitImpl)(void);
 //! \param key_len the length of the key, in bytes
 //! \param val a pointer to the value data
 //! \param val_len the length of the value, in bytes
-//! \returns S_SUCCESS if the key/val pair was succesfully inserted
+//! \returns S_SUCCESS if the key/val pair was successfully inserted
 //! and an error code otherwise (See \ref StatusCode)
 typedef status_t (*BlobDBInsertImpl)
     (const uint8_t *key, int key_len, const uint8_t *val, int val_len);
@@ -87,7 +87,7 @@ typedef int (*BlobDBGetLenImpl)
 //! \param key_len the length of the key, in bytes
 //! \param[out] val_out a pointer to a buffer of size val_len
 //! \param val_len the length of the value to be copied, in bytes
-//! \returns S_SUCCESS if the value for key was succesfully read,
+//! \returns S_SUCCESS if the value for key was successfully read,
 //! and an error code otherwise (See \ref StatusCode)
 typedef status_t (*BlobDBReadImpl)
     (const uint8_t *key, int key_len, uint8_t *val_out, int val_len);
@@ -95,13 +95,13 @@ typedef status_t (*BlobDBReadImpl)
 //! Implements the delete API. Note that this function should be blocking.
 //! \param key a pointer to the key data
 //! \param key_len the length of the key, in bytes
-//! \returns S_SUCCESS if the key/val pair was succesfully deleted
+//! \returns S_SUCCESS if the key/val pair was successfully deleted
 //! and an error code otherwise (See \ref StatusCode)
 typedef status_t (*BlobDBDeleteImpl)
     (const uint8_t *key, int key_len);
 
 //! Implements the flush API. Note that this function should be blocking.
-//! \returns S_SUCCESS if all key/val pairs were succesfully deleted
+//! \returns S_SUCCESS if all key/val pairs were successfully deleted
 //! and an error code otherwise (See \ref StatusCode)
 typedef status_t (*BlobDBFlushImpl)(void);
 
diff --git a/src/fw/services/normal/filesystem/pfs.c b/src/fw/services/normal/filesystem/pfs.c
index 8623f963..e29f813d 100644
--- a/src/fw/services/normal/filesystem/pfs.c
+++ b/src/fw/services/normal/filesystem/pfs.c
@@ -899,7 +899,7 @@ static status_t create_flash_file(File *f) {
     }
   }
 
-  // we have succesfully allocated space for the file, so add file specific info
+  // we have successfully allocated space for the file, so add file specific info
   f->start_page = f->curr_page = start_page;
 
   FileHeader file_hdr;
diff --git a/src/fw/syscall/syscall.h b/src/fw/syscall/syscall.h
index f261eefa..f57d3c20 100644
--- a/src/fw/syscall/syscall.h
+++ b/src/fw/syscall/syscall.h
@@ -269,7 +269,7 @@ void sys_process_get_wakeup_info(WakeupInfo *info);
 const PebbleProcessMd* sys_process_manager_get_current_process_md(void);
 
 //! Copy UUID for the current process.
-//! @return True if the UUID was succesfully copied.
+//! @return True if the UUID was successfully copied.
 bool sys_process_manager_get_current_process_uuid(Uuid *uuid_out);
 
 //! Get the AppInstallId for the current process
diff --git a/src/include/bluetooth/bluetooth_types.h b/src/include/bluetooth/bluetooth_types.h
index 00fdb003..8a91a6fe 100644
--- a/src/include/bluetooth/bluetooth_types.h
+++ b/src/include/bluetooth/bluetooth_types.h
@@ -27,7 +27,7 @@ typedef enum {
   //! The operation was successful.
   BTErrnoOK = 0,
 
-  //! Connection established succesfully.
+  //! Connection established successfully.
   BTErrnoConnected = BTErrnoOK,
 
   //! One or more parameters were invalid.
diff --git a/src/include/bluetooth/bonding_sync.h b/src/include/bluetooth/bonding_sync.h
index d906642f..9ee55ebe 100644
--- a/src/include/bluetooth/bonding_sync.h
+++ b/src/include/bluetooth/bonding_sync.h
@@ -47,7 +47,7 @@ void bt_driver_handle_host_added_bonding(const BleBonding *bonding);
 //! Called by the FW when a bonding is removed (i.e. user "Forgot" a bonding from Settings).
 void bt_driver_handle_host_removed_bonding(const BleBonding *bonding);
 
-//! Called by the BT driver after succesfully pairing a new device.
+//! Called by the BT driver after successfully pairing a new device.
 //! @param addr The address that is used to refer to the connection. This is used to associate
 //! the bonding with the GAPLEConnection.
 extern void bt_driver_cb_handle_create_bonding(const BleBonding *bonding,
diff --git a/wscript b/wscript
index 6cb03b0f..2d71b324 100644
--- a/wscript
+++ b/wscript
@@ -1429,7 +1429,7 @@ class gdb_prf(BuildContext):
 
 def openocd(ctx):
     """ Starts openocd and leaves it running. It will reset the board to
-        increase the chances of attaching succesfully. """
+        increase the chances of attaching successfully. """
     waftools.openocd.run_command(ctx, 'init; reset', shutdown=False)