diff --git a/doc/classes/Input.xml b/doc/classes/Input.xml
index 10ec15b99d9..0e6e54c8fd4 100644
--- a/doc/classes/Input.xml
+++ b/doc/classes/Input.xml
@@ -123,7 +123,7 @@
 			<argument index="0" name="button_index" type="int">
 			</argument>
 			<description>
-				Receives a [code]JOY_BUTTON_*[/code] Enum and returns it's equivalent name as a string.
+				Receives a [code]JOY_BUTTON_*[/code] Enum and returns its equivalent name as a string.
 			</description>
 		</method>
 		<method name="get_joy_guid" qualifiers="const">
diff --git a/doc/classes/PhysicsServer.xml b/doc/classes/PhysicsServer.xml
index f79baea0be0..c836414dd22 100644
--- a/doc/classes/PhysicsServer.xml
+++ b/doc/classes/PhysicsServer.xml
@@ -1260,7 +1260,7 @@
 			The higher, the stronger.
 		</constant>
 		<constant name="PIN_JOINT_IMPULSE_CLAMP" value="2" enum="PinJointParam">
-			If above 0, this value is the maximum value for an impulse that this Joint puts on it's ends.
+			If above 0, this value is the maximum value for an impulse that this Joint puts on its ends.
 		</constant>
 		<constant name="HINGE_JOINT_BIAS" value="0" enum="HingeJointParam">
 			The speed with which the two bodies get pulled together when they move in different directions.
diff --git a/doc/classes/ProjectSettings.xml b/doc/classes/ProjectSettings.xml
index 9efc05dfd55..dfecff9050c 100644
--- a/doc/classes/ProjectSettings.xml
+++ b/doc/classes/ProjectSettings.xml
@@ -182,7 +182,7 @@
 			Name of the project. It is used from both project manager and by the exporters. Overriding this as name.locale allows setting it in multiple languages.
 		</member>
 		<member name="application/config/use_custom_user_dir" type="bool" setter="" getter="">
-			Allow the project to save to it's own custom user dir (in AppData on windows or ~/.config on unixes). This setting only works for desktop exporters. A name must be set in the "custom_user_dir_name" setting for this to take effect.
+			Allow the project to save to its own custom user dir (in AppData on windows or ~/.config on unixes). This setting only works for desktop exporters. A name must be set in the "custom_user_dir_name" setting for this to take effect.
 		</member>
 		<member name="application/run/disable_stderr" type="bool" setter="" getter="">
 			Disable printing to stderr on exported build.
diff --git a/editor/plugins/script_editor_plugin.cpp b/editor/plugins/script_editor_plugin.cpp
index 080d3ff894e..07a7e7952af 100644
--- a/editor/plugins/script_editor_plugin.cpp
+++ b/editor/plugins/script_editor_plugin.cpp
@@ -490,7 +490,7 @@ void ScriptEditor::_open_recent_script(int p_idx) {
 			edit(text_file, true);
 			return;
 		}
-		// if it's a path then its most likely a deleted file not help
+		// if it's a path then it's most likely a deleted file not help
 	} else if (path.find("::") != -1) {
 		// built-in script
 		Ref<Script> script = ResourceLoader::load(path);
diff --git a/platform/android/os_android.cpp b/platform/android/os_android.cpp
index 30bc4134592..8e050c1d275 100644
--- a/platform/android/os_android.cpp
+++ b/platform/android/os_android.cpp
@@ -586,7 +586,7 @@ Error OS_Android::shell_open(String p_uri) {
 
 String OS_Android::get_resource_dir() const {
 
-	return "/"; //android has it's own filesystem for resources inside the APK
+	return "/"; //android has its own filesystem for resources inside the APK
 }
 
 String OS_Android::get_locale() const {
diff --git a/platform/x11/os_x11.cpp b/platform/x11/os_x11.cpp
index 7c4c8f0efff..88c2c8aec6f 100644
--- a/platform/x11/os_x11.cpp
+++ b/platform/x11/os_x11.cpp
@@ -2095,7 +2095,7 @@ void OS_X11::process_xevents() {
 				last_timestamp = event.xkey.time;
 
 				// key event is a little complex, so
-				// it will be handled in it's own function.
+				// it will be handled in its own function.
 				handle_key_event((XKeyEvent *)&event);
 			} break;
 			case SelectionRequest: {
diff --git a/scene/3d/arvr_nodes.cpp b/scene/3d/arvr_nodes.cpp
index 4bff26a2006..2dc500f7abe 100644
--- a/scene/3d/arvr_nodes.cpp
+++ b/scene/3d/arvr_nodes.cpp
@@ -38,14 +38,14 @@
 void ARVRCamera::_notification(int p_what) {
 	switch (p_what) {
 		case NOTIFICATION_ENTER_TREE: {
-			// need to find our ARVROrigin parent and let it know we're it's camera!
+			// need to find our ARVROrigin parent and let it know we're its camera!
 			ARVROrigin *origin = Object::cast_to<ARVROrigin>(get_parent());
 			if (origin != NULL) {
 				origin->set_tracked_camera(this);
 			}
 		}; break;
 		case NOTIFICATION_EXIT_TREE: {
-			// need to find our ARVROrigin parent and let it know we're no longer it's camera!
+			// need to find our ARVROrigin parent and let it know we're no longer its camera!
 			ARVROrigin *origin = Object::cast_to<ARVROrigin>(get_parent());
 			if (origin != NULL) {
 				origin->clear_tracked_camera_if(this);
diff --git a/scene/3d/arvr_nodes.h b/scene/3d/arvr_nodes.h
index 67fb6585624..d6690676cc1 100644
--- a/scene/3d/arvr_nodes.h
+++ b/scene/3d/arvr_nodes.h
@@ -62,7 +62,7 @@ public:
 };
 
 /*
-	ARVRController is a helper node that automatically updates it's position based on tracker data.
+	ARVRController is a helper node that automatically updates its position based on tracker data.
 
 	It must be a child node of our ARVROrigin node
 */
@@ -102,7 +102,7 @@ public:
 };
 
 /*
-	ARVRAnchor is a helper node that automatically updates it's position based on anchor data, it represents a real world location.
+	ARVRAnchor is a helper node that automatically updates its position based on anchor data, it represents a real world location.
 	It must be a child node of our ARVROrigin node
 */
 
diff --git a/scene/3d/voxel_light_baker.cpp b/scene/3d/voxel_light_baker.cpp
index 541f6047d9a..0eccbbc8f9b 100644
--- a/scene/3d/voxel_light_baker.cpp
+++ b/scene/3d/voxel_light_baker.cpp
@@ -261,7 +261,7 @@ static _FORCE_INLINE_ void get_uv_and_normal(const Vector3 &p_pos, const Vector3
 void VoxelLightBaker::_plot_face(int p_idx, int p_level, int p_x, int p_y, int p_z, const Vector3 *p_vtx, const Vector3 *p_normal, const Vector2 *p_uv, const MaterialCache &p_material, const AABB &p_aabb) {
 
 	if (p_level == cell_subdiv - 1) {
-		//plot the face by guessing it's albedo and emission value
+		//plot the face by guessing its albedo and emission value
 
 		//find best axis to map to, for scanning values
 		int closest_axis = 0;
diff --git a/scene/resources/packed_scene.cpp b/scene/resources/packed_scene.cpp
index 086fb83af94..42ce9d10cdf 100644
--- a/scene/resources/packed_scene.cpp
+++ b/scene/resources/packed_scene.cpp
@@ -264,7 +264,7 @@ Node *SceneState::instance(GenEditState p_edit_state) const {
 			}
 
 			if (n.instance >= 0 || n.type != TYPE_INSTANCED || i == 0) {
-				//if node was not part of instance, must set it's name, parenthood and ownership
+				//if node was not part of instance, must set its name, parenthood and ownership
 				if (i > 0) {
 					if (parent) {
 						parent->_add_child_nocheck(node, snames[n.name]);