diff --git a/tests/benchmarks/latency_measure/src/thread_switch_yield.c b/tests/benchmarks/latency_measure/src/thread_switch_yield.c
index 078dec73829..d2cb78c154d 100644
--- a/tests/benchmarks/latency_measure/src/thread_switch_yield.c
+++ b/tests/benchmarks/latency_measure/src/thread_switch_yield.c
@@ -34,7 +34,7 @@ static struct k_thread y_thread;
 
 /**
  *
- * @brief Helper thread for measuring thread switeh latency using yield
+ * @brief Helper thread for measuring thread switch latency using yield
  *
  * @return N/A
  */
diff --git a/tests/drivers/dma/chan_blen_transfer/src/test_dma.c b/tests/drivers/dma/chan_blen_transfer/src/test_dma.c
index fb263a85a13..f5ff8f922e8 100644
--- a/tests/drivers/dma/chan_blen_transfer/src/test_dma.c
+++ b/tests/drivers/dma/chan_blen_transfer/src/test_dma.c
@@ -13,7 +13,7 @@
  * - Test Steps
  *   -# Set dma channel configuration including source/dest addr, burstlen
  *   -# Set direction memory-to-memory
- *   -# Start transter
+ *   -# Start transfer
  * - Expected Results
  *   -# Data is transferred correctly from src to dest
  * @}
diff --git a/tests/drivers/gpio/gpio_basic_api/src/test_callback_manage.c b/tests/drivers/gpio/gpio_basic_api/src/test_callback_manage.c
index ed2398c896f..afbd6cb02ea 100644
--- a/tests/drivers/gpio/gpio_basic_api/src/test_callback_manage.c
+++ b/tests/drivers/gpio/gpio_basic_api/src/test_callback_manage.c
@@ -8,7 +8,7 @@
  * @addtogroup t_gpio_basic_api
  * @{
  * @defgroup t_gpio_callback_manage test_gpio_callback_manage
- * @brief TestPurpose: verify zephyr gpio callback add/remvoe and enable/disable
+ * @brief TestPurpose: verify zephyr gpio callback add/remove and enable/disable
  * @}
  */
 
diff --git a/tests/kernel/context/src/context.c b/tests/kernel/context/src/context.c
index 2d158448894..ab108cbdc54 100644
--- a/tests/kernel/context/src/context.c
+++ b/tests/kernel/context/src/context.c
@@ -343,8 +343,8 @@ static int test_kernel_interrupts(disable_int_func disable_int,
  * @brief Test some context routines from a preemptible thread
  *
  * This routines tests the k_current_get() and
- * k_is_in_isr() routines from both a preemtible thread  and an ISR (that
- * interrupted a preemtible thread). Checking those routines with cooperative
+ * k_is_in_isr() routines from both a preemptible thread  and an ISR (that
+ * interrupted a preemptible thread). Checking those routines with cooperative
  * threads are done elsewhere.
  *
  * @return TC_PASS on success
@@ -467,7 +467,7 @@ static int test_kernel_thread(k_tid_t task_thread_id)
  * @brief Entry point to the thread's helper
  *
  * This routine is the entry point to the thread's helper thread.  It is used to
- * help test the behaviour of the k_yield() routine.
+ * help test the behavior of the k_yield() routine.
  *
  * @param arg1    unused
  * @param arg2    unused
@@ -508,14 +508,14 @@ static void thread_helper(void *arg1, void *arg2, void *arg3)
  * @brief Test the k_yield() routine
  *
  * This routine tests the k_yield() routine.  It starts another thread
- * (thus also testing k_thread_create() and checks that behaviour of
+ * (thus also testing k_thread_create() and checks that behavior of
  * k_yield() against the cases of there being a higher priority thread,
  * a lower priority thread, and another thread of equal priority.
  *
  * On error, it may set <thread_detected_error> to one of the following values:
  *   10 - helper thread ran prematurely
  *   11 - k_yield() did not yield to a higher priority thread
- *   12 - k_yield() did not yield to an equal prioirty thread
+ *   12 - k_yield() did not yield to an equal priority thread
  *   13 - k_yield() yielded to a lower priority thread
  *
  * @return TC_PASS on success
diff --git a/tests/kernel/mem_heap/mheap_api_concept/src/test_mheap_concept.c b/tests/kernel/mem_heap/mheap_api_concept/src/test_mheap_concept.c
index c6f10b48c42..73d4da89acf 100644
--- a/tests/kernel/mem_heap/mheap_api_concept/src/test_mheap_concept.c
+++ b/tests/kernel/mem_heap/mheap_api_concept/src/test_mheap_concept.c
@@ -81,7 +81,7 @@ void test_mheap_block_desc(void)
 	 * TESTPOINT: The kernel uses the first 16 bytes of any memory block
 	 * allocated from the heap memory pool to save the block descriptor
 	 * information it needs to later free the block. Consequently, an
-	 * application’s request for an N byte chunk of heap memory requires a
+	 * application's request for an N byte chunk of heap memory requires a
 	 * block that is at least (N+16) bytes long.
 	 * Test steps:
 	 * initial memory heap status (F for free, U for used):
diff --git a/tests/kernel/mem_pool/test_mpool_concept/src/test_mpool_alloc_wait.c b/tests/kernel/mem_pool/test_mpool_concept/src/test_mpool_alloc_wait.c
index 54ac98e2f05..75db6123185 100644
--- a/tests/kernel/mem_pool/test_mpool_concept/src/test_mpool_alloc_wait.c
+++ b/tests/kernel/mem_pool/test_mpool_concept/src/test_mpool_alloc_wait.c
@@ -10,7 +10,7 @@
  * @defgroup t_mpool_concept test_mpool_concept
  * @brief TestPurpose: verify memory pool concepts.
  * @details All TESTPOINTs extracted from kernel documentation.
- * TESTPOINTs cover testable kernel behaviours that preserve across internal
+ * TESTPOINTs cover testable kernel behaviors that preserve across internal
  * implementation change or kernel version change.
  * As a black-box test, TESTPOINTs do not cover internal operations.
  *
@@ -22,7 +22,7 @@
  * memory block
  * - TESTPOINT: memory pool blocks can be recursively partitioned into quarters
  * until blocks of the minimum size are obtained
- * - TESTPOINT: if a suitable block can’t be created, the allocation request
+ * - TESTPOINT: if a suitable block can't be created, the allocation request
  * fails
  *
  * TESTPOINTs related to kconfig are covered in kconfig test:
diff --git a/tests/kernel/mem_slab/test_mslab/src/slab.c b/tests/kernel/mem_slab/test_mslab/src/slab.c
index 341c72aed17..a91c3c588f3 100644
--- a/tests/kernel/mem_slab/test_mslab/src/slab.c
+++ b/tests/kernel/mem_slab/test_mslab/src/slab.c
@@ -218,7 +218,7 @@ int testSlabGetAllBlocks(void **p)
 
 /**
  *
- * @brief Free all memeory blocks
+ * @brief Free all memory blocks
  *
  * This routine frees all memory blocks and also verifies that the number of
  * blocks used are correct.
diff --git a/tests/kernel/mem_slab/test_mslab_concept/src/test_mslab_alloc_wait.c b/tests/kernel/mem_slab/test_mslab_concept/src/test_mslab_alloc_wait.c
index defb93812d8..852a009c3d4 100644
--- a/tests/kernel/mem_slab/test_mslab_concept/src/test_mslab_alloc_wait.c
+++ b/tests/kernel/mem_slab/test_mslab_concept/src/test_mslab_alloc_wait.c
@@ -10,7 +10,7 @@
  * @defgroup t_mslab_concept test_mslab_concept
  * @brief TestPurpose: verify memory slab concepts.
  * @details All TESTPOINTs extracted from kernel documentation.
- * TESTPOINTs cover testable kernel behaviours that preserve across internal
+ * TESTPOINTs cover testable kernel behaviors that preserve across internal
  * implementation change or kernel version change.
  * As a black-box test, TESTPOINTs do not cover internal operations.
  *
diff --git a/tests/kernel/mutex/mutex/src/mutex.c b/tests/kernel/mutex/mutex/src/mutex.c
index 41e2566e692..ca4c90877eb 100644
--- a/tests/kernel/mutex/mutex/src/mutex.c
+++ b/tests/kernel/mutex/mutex/src/mutex.c
@@ -13,7 +13,7 @@
  * A task that owns a mutex is promoted to the priority level of the
  * highest-priority task attempting to lock the mutex.
  *
- * In addition, recusive locking capabilities and the use of a private mutex
+ * In addition, recursive locking capabilities and the use of a private mutex
  * are also tested.
  *
  * This module tests the following mutex routines:
diff --git a/tests/kernel/pipe/test_pipe_api/src/test_pipe_fail.c b/tests/kernel/pipe/test_pipe_api/src/test_pipe_fail.c
index e943a7edc9a..aeadb3dffff 100644
--- a/tests/kernel/pipe/test_pipe_api/src/test_pipe_fail.c
+++ b/tests/kernel/pipe/test_pipe_api/src/test_pipe_fail.c
@@ -8,7 +8,7 @@
  * @addtogroup t_pipe_api
  * @{
  * @defgroup t_pipe_fail_get_put test_pipe_fail_get_put
- * @brief TestPurpose: verify zephyr pipe get/put under differnt condition
+ * @brief TestPurpose: verify zephyr pipe get/put under different condition
  * - API coverage
  *   -# k_pipe_get [TIMEOUT K_NO_WAIT]
  *   -# k_pipe_put [K_FOREVER TIMEOUT K_NO_WAIT]
diff --git a/tests/kernel/static_idt/src/static_idt.c b/tests/kernel/static_idt/src/static_idt.c
index dd52f800eb2..c404be7652e 100644
--- a/tests/kernel/static_idt/src/static_idt.c
+++ b/tests/kernel/static_idt/src/static_idt.c
@@ -63,7 +63,7 @@ void isr_handler(void)
 
 /**
  *
- * This is the handler for the divde by zero exception.
+ * This is the handler for the divide by zero exception.
  *
  * The source of this divide-by-zero error comes from the following line in
  * main() ...
diff --git a/tests/ztest/include/kernel_arch_thread.h b/tests/ztest/include/kernel_arch_thread.h
index 8765dda21db..cd21574a85f 100644
--- a/tests/ztest/include/kernel_arch_thread.h
+++ b/tests/ztest/include/kernel_arch_thread.h
@@ -8,7 +8,7 @@
  * @file
  * @brief Per-arch thread definition
  *
- * This file contains defintions for
+ * This file contains definitions for
  *
  *  struct _thread_arch
  *  struct _callee_saved