diff --git a/doc/api/api.rst b/doc/api/api.rst
index 7e5d13fb1f9..c4c42b657cb 100644
--- a/doc/api/api.rst
+++ b/doc/api/api.rst
@@ -7,7 +7,7 @@ Welcome to the Zephyr Project's :abbr:`API (Application Programing Interface)`
 documentation.
 
 This section contains the API documentation automatically extracted from the
-code. To ease navigation, we have split the APis in nanokernel APIs and
+code. To ease navigation, we have split the APIs in nanokernel APIs and
 microkernel APIs. If you are looking for a specific API, enter it on the
 search box. The search results display all sections containing information
 about that API.
diff --git a/include/gpio.h b/include/gpio.h
index 6b581182f82..b3147966c5a 100644
--- a/include/gpio.h
+++ b/include/gpio.h
@@ -292,7 +292,7 @@ static inline int gpio_add_callback(struct device *port,
  * @param port Pointer to the device structure for the driver instance.
  * @param callback A valid application's callback structure pointer.
  *
- * Note: enables to remove as many callacks as added through
+ * Note: enables to remove as many callbacks as added through
  *       gpio_add_callback().
  */
 static inline int gpio_remove_callback(struct device *port,
diff --git a/include/init.h b/include/init.h
index 78cb780f403..12df41f3e96 100644
--- a/include/init.h
+++ b/include/init.h
@@ -41,7 +41,7 @@ extern "C" {
 /**
  * @def SYS_INIT
  *
- * @brief Run an initailization function at boot at specified priority
+ * @brief Run an initialization function at boot at specified priority
  *
  * @details This macro lets you run a function at system boot.
  *
@@ -58,7 +58,7 @@ extern "C" {
 /**
  * @def SYS_INIT_PM
  *
- * @brief Run an initailization function at boot at specified priority,
+ * @brief Run an initialization function at boot at specified priority,
  * and define functions to run at suspend/resume.
  *
  * @copydetails SYS_INIT