diff --git a/tests/coverage/coverage_report/index_template.html b/tests/coverage/coverage_report/index_template.html
index f2517444ea5..b66cc043a9e 100644
--- a/tests/coverage/coverage_report/index_template.html
+++ b/tests/coverage/coverage_report/index_template.html
@@ -388,7 +388,7 @@
       }
 
       // Makes sure that the html elements for a specific row (and all its parents) have been created.
-      // This data is gnerated lazily to improve start-up time.
+      // This data is generated lazily to improve start-up time.
       function ensure_dom_for_row(row) {
         if (row.dom_elem) {
           return;
diff --git a/tests/files/io_tests/readme.txt b/tests/files/io_tests/readme.txt
index e6de4b8784f..fbc0aee8141 100644
--- a/tests/files/io_tests/readme.txt
+++ b/tests/files/io_tests/readme.txt
@@ -34,7 +34,7 @@ SIMPLE TESTS
 		Rotation
 		Scale
 
-	HIERARCY
+	HIERARCHY
 		Parent_Child
 		Parent_Multiple Child
 	
diff --git a/tests/files/modeling/mesh_ops_test.py b/tests/files/modeling/mesh_ops_test.py
index 1765a7bff04..d02e07fbc37 100644
--- a/tests/files/modeling/mesh_ops_test.py
+++ b/tests/files/modeling/mesh_ops_test.py
@@ -44,7 +44,7 @@ class TestSpec:
             op: string - name of a function in bpy.ops.mesh
             test_obj: string - name of the object to apply the test to
             expected_obj: string - name of the object that has the expected result
-            select: string - should be V, E, or F followed by space seperated indices of desired selection
+            select: string - should be V, E, or F followed by space separated indices of desired selection
             params: string - space-separated name=val pairs giving operator arguments
         """
 
diff --git a/tests/performance/tests/bpy_rna.py b/tests/performance/tests/bpy_rna.py
index fe5ca185077..91d95ea7a1b 100644
--- a/tests/performance/tests/bpy_rna.py
+++ b/tests/performance/tests/bpy_rna.py
@@ -172,7 +172,7 @@ class BPYRNATest(api.Test):
 def generate(env):
     return [
         BPYRNATest("ID Instance Access", _run_id_instance_access, 10000 * 1000),
-        BPYRNATest("Static RNA Stuct Instance Access", _run_static_subdata_instance_access, 10000 * 1000),
+        BPYRNATest("Static RNA Struct Instance Access", _run_static_subdata_instance_access, 10000 * 1000),
         BPYRNATest("IDProperty Access", _run_idproperty_access, 10000 * 1000),
         BPYRNATest("Py-Defined Struct Register", _run_runtime_group_register_access, 100 * 1000,
                    {"do_register": True}),
diff --git a/tests/python/bl_blendfile_library_overrides.py b/tests/python/bl_blendfile_library_overrides.py
index 133b01d8455..8a19cb5b36d 100644
--- a/tests/python/bl_blendfile_library_overrides.py
+++ b/tests/python/bl_blendfile_library_overrides.py
@@ -186,7 +186,7 @@ class TestLibraryOverridesComplex(TestHelper):
 
         collection_sub = bpy.data.collections.new(self.__class__.DATA_NAME_SAMENAME_CONTAINER)
         collection_container.children.link(collection_sub)
-        # 'Samename' objects are purposedly not added to the collection here.
+        # 'Samename' objects are purposely not added to the collection here.
 
         # Sub-container collections are empty by default.
         collection_subcontainer_0 = bpy.data.collections.new(self.__class__.DATA_NAME_SUBCONTAINER_0)
diff --git a/tests/python/bl_blendfile_relationships.py b/tests/python/bl_blendfile_relationships.py
index e5843b5a975..a23ac6e4c4a 100644
--- a/tests/python/bl_blendfile_relationships.py
+++ b/tests/python/bl_blendfile_relationships.py
@@ -301,7 +301,7 @@ def argparse_create():
     import argparse
 
     # When --help or no args are given, print this help
-    description = "Test basic realtionship info of loaded data."
+    description = "Test basic relationship info of loaded data."
     parser = argparse.ArgumentParser(description=description)
     parser.add_argument(
         "--src-test-dir",
diff --git a/tests/python/bl_blendfile_utils.py b/tests/python/bl_blendfile_utils.py
index 04009de487f..b2fb5d9744c 100644
--- a/tests/python/bl_blendfile_utils.py
+++ b/tests/python/bl_blendfile_utils.py
@@ -51,7 +51,7 @@ class TestHelper(unittest.TestCase):
 
 class TestBlendLibLinkHelper(TestHelper):
     """
-    Generate relatively complex data layout accross several blendfiles.
+    Generate relatively complex data layout across several blendfiles.
 
     Useful for testing link/append/etc., but also data relationships e.g.
     """
diff --git a/tests/python/bl_pyapi_idprop.py b/tests/python/bl_pyapi_idprop.py
index b281c733a5e..62cfc1c8c32 100644
--- a/tests/python/bl_pyapi_idprop.py
+++ b/tests/python/bl_pyapi_idprop.py
@@ -300,7 +300,7 @@ class TestIdPropertyDynamicRNA(TestHelper, unittest.TestCase):
         # PropertyGroup type always exists.
         self.assertTrue('dynrna_prop' in self.id.bl_system_properties_get())
         # However, the underlying idprop data for each property of the PropertyGroup
-        # does not exist untill set through an RNA property access.
+        # does not exist until set through an RNA property access.
         self.assertTrue(len(self.id.bl_system_properties_get()['dynrna_prop']) == 0)
 
         self.id.dynrna_prop.string_prop = "Test String"
@@ -388,7 +388,7 @@ class TestIdPropertyDynamicRNA(TestHelper, unittest.TestCase):
 
         # Raw-set back to default value.
         self.id.bl_system_properties_get()['dynrna_prop']['string_prop_transform'] = "test"
-        # Now set_transform will return 12-char string, wich is also invalid and discarded.
+        # Now set_transform will return 12-char string, which is also invalid and discarded.
         stderr, sys.stderr = sys.stderr, io.StringIO()
         self.id.dynrna_prop.string_prop_transform = "test!!"
         self.assertTrue("ValueError" in sys.stderr.getvalue() and
diff --git a/tests/python/bl_rigging_symmetrize.py b/tests/python/bl_rigging_symmetrize.py
index 23ff2edc9d9..ec381e012b1 100644
--- a/tests/python/bl_rigging_symmetrize.py
+++ b/tests/python/bl_rigging_symmetrize.py
@@ -14,7 +14,7 @@ import bpy
 
 
 def check_loc_rot_scale(self, bone, exp_bone):
-    # Check if posistions are the same
+    # Check if positions are the same
     self.assertEqualVector(
         bone.head, exp_bone.head, "Head position", bone.name)
     self.assertEqualVector(
diff --git a/tests/python/bl_rna_defaults.py b/tests/python/bl_rna_defaults.py
index b027b3d0871..d42597a1e59 100644
--- a/tests/python/bl_rna_defaults.py
+++ b/tests/python/bl_rna_defaults.py
@@ -20,7 +20,7 @@ def as_float_32(f):
 
 def repr_float_precision(f, round_fn):
     """
-    Get's the value which was most likely entered by a human in C.
+    Gets the value which was most likely entered by a human in C.
 
     Needed since Python will show trailing precision from a 32bit float.
     """
diff --git a/tests/python/bl_rna_paths.py b/tests/python/bl_rna_paths.py
index a012f5dcc8c..3cbe2840a2c 100644
--- a/tests/python/bl_rna_paths.py
+++ b/tests/python/bl_rna_paths.py
@@ -108,7 +108,7 @@ class TestRnaAncestors(unittest.TestCase):
                 # Do not error for now. Only ensure that if there is a rna_ancestors array, it is valid.
                 return
             if repr(rna_ancestors[0]) != ancestors_sub[0]:
-                # Do not error for now. There are valid cases wher the data is 'rebased' on a new 'root' ID.
+                # Do not error for now. There are valid cases where the data is 'rebased' on a new 'root' ID.
                 return
             if repr(p_data) in ancestors_sub:
                 # Loop back onto itself, skip.
diff --git a/tests/python/cycles_render_tests.py b/tests/python/cycles_render_tests.py
index 0a7ceb814be..5809ac37d42 100644
--- a/tests/python/cycles_render_tests.py
+++ b/tests/python/cycles_render_tests.py
@@ -282,7 +282,7 @@ def main():
         report.set_fail_threshold(0.032)
 
     # Layer mixing is different between SVM and OSL, so a few tests have
-    # noticably different noise causing OSL Principled BSDF tests to fail.
+    # noticeably different noise causing OSL Principled BSDF tests to fail.
     if ((args.osl == 'all') and (test_dir_name == 'principled_bsdf')):
         report.set_fail_threshold(0.06)
 
diff --git a/tests/python/sculpt_paint/brush_strength_curves_test.py b/tests/python/sculpt_paint/brush_strength_curves_test.py
index bcccfd6bfdc..57e7dd9bfcf 100644
--- a/tests/python/sculpt_paint/brush_strength_curves_test.py
+++ b/tests/python/sculpt_paint/brush_strength_curves_test.py
@@ -110,7 +110,7 @@ class BrushCurvesTest(unittest.TestCase):
         # Note, depending on if the tests are run with asserts enabled or not, the test may fail before this point
         # inside blender itself.
         all_valid = all([not math.isinf(pos) and not math.isnan(pos) for pos in position_data])
-        self.assertTrue(all_valid, "All position componentes should be rational values")
+        self.assertTrue(all_valid, "All position components should be rational values")
 
     def test_smooth_preset_curve_creates_valid_stroke(self):
         bpy.context.tool_settings.sculpt.brush.curve_distance_falloff_preset = 'SMOOTH'
diff --git a/tests/python/ui_simulate/modules/easy_keys.py b/tests/python/ui_simulate/modules/easy_keys.py
index cf155ed69fe..5060c57cd1c 100644
--- a/tests/python/ui_simulate/modules/easy_keys.py
+++ b/tests/python/ui_simulate/modules/easy_keys.py
@@ -263,7 +263,7 @@ class EventGenerate:
 
     def text_unicode(self, text):
         # Since the only purpose of this key-press is to enter text
-        # the key can be almost anything, use a key which isn't likely to be assigned ot any other action.
+        # the key can be almost anything, use a key which isn't likely to be assigned to any other action.
         #
         # If it were possible `EVT_UNKNOWNKEY` would be most correct
         # as dead keys map to this and still enter text.
diff --git a/tests/python/view_layer/view_layer_common.py b/tests/python/view_layer/view_layer_common.py
index 5eddcfd59bb..20e377a1a1a 100644
--- a/tests/python/view_layer/view_layer_common.py
+++ b/tests/python/view_layer/view_layer_common.py
@@ -139,7 +139,7 @@ def get_scene_collection(collection):
 
 
 def get_scene_collections(scene):
-    """Return all the scene collections ahd their data"""
+    """Return all the scene collections and their data"""
     master_collection = scene.get_pointer(b'collection')
     return get_scene_collection(master_collection)