diff --git a/core/os/input.cpp b/core/os/input.cpp
index 63bf1db499c..f04d4a1b3e4 100644
--- a/core/os/input.cpp
+++ b/core/os/input.cpp
@@ -34,6 +34,10 @@
 #include "core/os/os.h"
 #include "core/project_settings.h"
 
+#ifdef TOOLS_ENABLED
+#include "editor/editor_settings.h"
+#endif
+
 Input *Input::singleton = NULL;
 
 Input *Input::get_singleton() {
@@ -123,6 +127,8 @@ void Input::_bind_methods() {
 void Input::get_argument_options(const StringName &p_function, int p_idx, List<String> *r_options) const {
 #ifdef TOOLS_ENABLED
 
+	const String quote_style = EDITOR_DEF("text_editor/completion/use_single_quotes", 0) ? "'" : "\"";
+
 	String pf = p_function;
 	if (p_idx == 0 && (pf == "is_action_pressed" || pf == "action_press" || pf == "action_release" || pf == "is_action_just_pressed" || pf == "is_action_just_released" || pf == "get_action_strength")) {
 
@@ -136,7 +142,7 @@ void Input::get_argument_options(const StringName &p_function, int p_idx, List<S
 				continue;
 
 			String name = pi.name.substr(pi.name.find("/") + 1, pi.name.length());
-			r_options->push_back("\"" + name + "\"");
+			r_options->push_back(quote_style + name + quote_style);
 		}
 	}
 #endif
diff --git a/editor/editor_settings.cpp b/editor/editor_settings.cpp
index b65a484b162..d2ff65246d9 100644
--- a/editor/editor_settings.cpp
+++ b/editor/editor_settings.cpp
@@ -466,6 +466,7 @@ void EditorSettings::_load_defaults(Ref<ConfigFile> p_extra_config) {
 	_initial_set("text_editor/completion/callhint_tooltip_offset", Vector2());
 	_initial_set("text_editor/completion/complete_file_paths", true);
 	_initial_set("text_editor/completion/add_type_hints", false);
+	_initial_set("text_editor/completion/use_single_quotes", false);
 
 	// Help
 	_initial_set("text_editor/help/show_help_index", true);
diff --git a/modules/gdscript/gdscript_editor.cpp b/modules/gdscript/gdscript_editor.cpp
index ab34184bfbc..69bf114c8e5 100644
--- a/modules/gdscript/gdscript_editor.cpp
+++ b/modules/gdscript/gdscript_editor.cpp
@@ -511,8 +511,10 @@ struct GDScriptCompletionIdentifier {
 
 static void _get_directory_contents(EditorFileSystemDirectory *p_dir, Set<String> &r_list) {
 
+	const String quote_style = EDITOR_DEF("text_editor/completion/use_single_quotes", false) ? "'" : "\"";
+
 	for (int i = 0; i < p_dir->get_file_count(); i++) {
-		r_list.insert("\"" + p_dir->get_file_path(i) + "\"");
+		r_list.insert(quote_style + p_dir->get_file_path(i) + quote_style);
 	}
 
 	for (int i = 0; i < p_dir->get_subdir_count(); i++) {
@@ -2178,6 +2180,8 @@ static void _find_call_arguments(const GDScriptCompletionContext &p_context, con
 	GDScriptParser::DataType base_type = p_base.type;
 	bool _static = false;
 
+	const String quote_style = EDITOR_DEF("text_editor/completion/use_single_quotes", false) ? "'" : "\"";
+
 	while (base_type.has_type) {
 		switch (base_type.kind) {
 			case GDScriptParser::DataType::CLASS: {
@@ -2198,7 +2202,7 @@ static void _find_call_arguments(const GDScriptCompletionContext &p_context, con
 
 				if ((p_method == "connect" || p_method == "emit_signal") && p_argidx == 0) {
 					for (int i = 0; i < base_type.class_type->_signals.size(); i++) {
-						r_result.insert("\"" + base_type.class_type->_signals[i].name.operator String() + "\"");
+						r_result.insert(quote_style + base_type.class_type->_signals[i].name.operator String() + quote_style);
 					}
 				}
 
@@ -2211,7 +2215,7 @@ static void _find_call_arguments(const GDScriptCompletionContext &p_context, con
 						List<MethodInfo> signals;
 						gds->get_script_signal_list(&signals);
 						for (List<MethodInfo>::Element *E = signals.front(); E; E = E->next()) {
-							r_result.insert("\"" + E->get().name + "\"");
+							r_result.insert(quote_style + E->get().name + quote_style);
 						}
 					}
 					Ref<GDScript> base_script = gds->get_base_script();
@@ -2270,7 +2274,7 @@ static void _find_call_arguments(const GDScriptCompletionContext &p_context, con
 					List<MethodInfo> signals;
 					ClassDB::get_signal_list(class_name, &signals);
 					for (List<MethodInfo>::Element *E = signals.front(); E; E = E->next()) {
-						r_result.insert("\"" + E->get().name + "\"");
+						r_result.insert(quote_style + E->get().name + quote_style);
 					}
 				}
 
@@ -2285,7 +2289,7 @@ static void _find_call_arguments(const GDScriptCompletionContext &p_context, con
 							continue;
 						}
 						String name = s.get_slice("/", 1);
-						r_result.insert("\"/root/" + name + "\"");
+						r_result.insert(quote_style + "/root/" + name + quote_style);
 					}
 				}
 
@@ -2299,7 +2303,7 @@ static void _find_call_arguments(const GDScriptCompletionContext &p_context, con
 							continue;
 						}
 						String name = s.get_slice("/", 1);
-						r_result.insert("\"" + name + "\"");
+						r_result.insert(quote_style + name + quote_style);
 					}
 				}
 
@@ -2334,6 +2338,8 @@ static void _find_call_arguments(const GDScriptCompletionContext &p_context, con
 
 static void _find_call_arguments(GDScriptCompletionContext &p_context, const GDScriptParser::Node *p_node, int p_argidx, Set<String> &r_result, bool &r_forced, String &r_arghint) {
 
+	const String quote_style = EDITOR_DEF("text_editor/completion/use_single_quotes", false) ? "'" : "\"";
+
 	if (!p_node || p_node->type != GDScriptParser::Node::TYPE_OPERATOR) {
 		return;
 	}
@@ -2451,7 +2457,7 @@ static void _find_call_arguments(GDScriptCompletionContext &p_context, const GDS
 		Set<String> methods;
 		_find_identifiers_in_base(p_context, connect_base, true, methods);
 		for (Set<String>::Element *E = methods.front(); E; E = E->next()) {
-			r_result.insert("\"" + E->get().replace("(", "").replace(")", "") + "\"");
+			r_result.insert(quote_style + E->get().replace("(", "").replace(")", "") + quote_style);
 		}
 	}
 
@@ -2460,6 +2466,8 @@ static void _find_call_arguments(GDScriptCompletionContext &p_context, const GDS
 
 Error GDScriptLanguage::complete_code(const String &p_code, const String &p_base_path, Object *p_owner, List<String> *r_options, bool &r_forced, String &r_call_hint) {
 
+	const String quote_style = EDITOR_DEF("text_editor/completion/use_single_quotes", false) ? "'" : "\"";
+
 	GDScriptParser parser;
 
 	parser.parse(p_code, p_base_path, false, "", true);
@@ -2526,7 +2534,7 @@ Error GDScriptLanguage::complete_code(const String &p_code, const String &p_base
 						continue;
 					}
 					String name = s.get_slice("/", 1);
-					options.insert("\"/root/" + name + "\"");
+					options.insert(quote_style + "/root/" + name + quote_style);
 				}
 			}
 		} break;
@@ -2666,7 +2674,7 @@ Error GDScriptLanguage::complete_code(const String &p_code, const String &p_base
 				switch (base_type.kind) {
 					case GDScriptParser::DataType::CLASS: {
 						for (int i = 0; i < base_type.class_type->_signals.size(); i++) {
-							options.insert("\"" + base_type.class_type->_signals[i].name.operator String() + "\"");
+							options.insert(quote_style + base_type.class_type->_signals[i].name.operator String() + quote_style);
 						}
 						base_type = base_type.class_type->base_type;
 					} break;
@@ -2677,7 +2685,7 @@ Error GDScriptLanguage::complete_code(const String &p_code, const String &p_base
 							List<MethodInfo> signals;
 							scr->get_script_signal_list(&signals);
 							for (List<MethodInfo>::Element *E = signals.front(); E; E = E->next()) {
-								options.insert("\"" + E->get().name + "\"");
+								options.insert(quote_style + E->get().name + quote_style);
 							}
 							Ref<Script> base_script = scr->get_base_script();
 							if (base_script.is_valid()) {
@@ -2704,7 +2712,7 @@ Error GDScriptLanguage::complete_code(const String &p_code, const String &p_base
 						List<MethodInfo> signals;
 						ClassDB::get_signal_list(class_name, &signals);
 						for (List<MethodInfo>::Element *E = signals.front(); E; E = E->next()) {
-							options.insert("\"" + E->get().name + "\"");
+							options.insert(quote_style + E->get().name + quote_style);
 						}
 					} break;
 					default: {
@@ -2890,7 +2898,7 @@ Error GDScriptLanguage::complete_code(const String &p_code, const String &p_base
 String GDScriptLanguage::_get_indentation() const {
 #ifdef TOOLS_ENABLED
 	if (Engine::get_singleton()->is_editor_hint()) {
-		bool use_space_indentation = EDITOR_DEF("text_editor/indent/type", 0);
+		bool use_space_indentation = EDITOR_DEF("text_editor/indent/type", false);
 
 		if (use_space_indentation) {
 			int indent_size = EDITOR_DEF("text_editor/indent/size", 4);
diff --git a/scene/animation/animation_player.cpp b/scene/animation/animation_player.cpp
index 016db15b731..ead3516116a 100644
--- a/scene/animation/animation_player.cpp
+++ b/scene/animation/animation_player.cpp
@@ -34,7 +34,10 @@
 #include "core/message_queue.h"
 #include "scene/scene_string_names.h"
 #include "servers/audio/audio_stream.h"
+
 #ifdef TOOLS_ENABLED
+#include "editor/editor_settings.h"
+
 void AnimatedValuesBackup::update_skeletons() {
 
 	for (int i = 0; i < entries.size(); i++) {
@@ -1510,13 +1513,19 @@ NodePath AnimationPlayer::get_root() const {
 
 void AnimationPlayer::get_argument_options(const StringName &p_function, int p_idx, List<String> *r_options) const {
 
+#ifdef TOOLS_ENABLED
+	const String quote_style = EDITOR_DEF("text_editor/completion/use_single_quotes", 0) ? "'" : "\"";
+#else
+	const String quote_style = "\"";
+#endif
+
 	String pf = p_function;
 	if (p_function == "play" || p_function == "play_backwards" || p_function == "remove_animation" || p_function == "has_animation" || p_function == "queue") {
 		List<StringName> al;
 		get_animation_list(&al);
 		for (List<StringName>::Element *E = al.front(); E; E = E->next()) {
 
-			r_options->push_back("\"" + String(E->get()) + "\"");
+			r_options->push_back(quote_style + String(E->get()) + quote_style);
 		}
 	}
 	Node::get_argument_options(p_function, p_idx, r_options);
diff --git a/scene/gui/control.cpp b/scene/gui/control.cpp
index c7cd2bb6d83..a38f97a90ce 100644
--- a/scene/gui/control.cpp
+++ b/scene/gui/control.cpp
@@ -2634,6 +2634,12 @@ bool Control::is_visibility_clip_disabled() const {
 
 void Control::get_argument_options(const StringName &p_function, int p_idx, List<String> *r_options) const {
 
+#ifdef TOOLS_ENABLED
+	const String quote_style = EDITOR_DEF("text_editor/completion/use_single_quotes", 0) ? "'" : "\"";
+#else
+	const String quote_style = "\"";
+#endif
+
 	Node::get_argument_options(p_function, p_idx, r_options);
 
 	if (p_idx == 0) {
@@ -2651,7 +2657,7 @@ void Control::get_argument_options(const StringName &p_function, int p_idx, List
 
 		sn.sort_custom<StringName::AlphCompare>();
 		for (List<StringName>::Element *E = sn.front(); E; E = E->next()) {
-			r_options->push_back("\"" + E->get() + "\"");
+			r_options->push_back(quote_style + E->get() + quote_style);
 		}
 	}
 }
diff --git a/scene/main/node.cpp b/scene/main/node.cpp
index 0465ffe4427..e80de68e3be 100644
--- a/scene/main/node.cpp
+++ b/scene/main/node.cpp
@@ -39,6 +39,10 @@
 #include "scene/scene_string_names.h"
 #include "viewport.h"
 
+#ifdef TOOLS_ENABLED
+#include "editor/editor_settings.h"
+#endif
+
 VARIANT_ENUM_CAST(Node::PauseMode);
 
 int Node::orphan_node_count = 0;
@@ -2637,10 +2641,16 @@ NodePath Node::get_import_path() const {
 
 static void _add_nodes_to_options(const Node *p_base, const Node *p_node, List<String> *r_options) {
 
+#ifdef TOOLS_ENABLED
+	const String quote_style = EDITOR_DEF("text_editor/completion/use_single_quotes", 0) ? "'" : "\"";
+#else
+	const String quote_style = "\"";
+#endif
+
 	if (p_node != p_base && !p_node->get_owner())
 		return;
 	String n = p_base->get_path_to(p_node);
-	r_options->push_back("\"" + n + "\"");
+	r_options->push_back(quote_style + n + quote_style);
 	for (int i = 0; i < p_node->get_child_count(); i++) {
 		_add_nodes_to_options(p_base, p_node->get_child(i), r_options);
 	}
diff --git a/scene/resources/material.cpp b/scene/resources/material.cpp
index 536eb11a27e..766c7bbd9f3 100644
--- a/scene/resources/material.cpp
+++ b/scene/resources/material.cpp
@@ -30,6 +30,10 @@
 
 #include "material.h"
 
+#ifdef TOOLS_ENABLED
+#include "editor/editor_settings.h"
+#endif
+
 #include "scene/scene_string_names.h"
 
 void Material::set_next_pass(const Ref<Material> &p_pass) {
@@ -236,6 +240,12 @@ void ShaderMaterial::_bind_methods() {
 
 void ShaderMaterial::get_argument_options(const StringName &p_function, int p_idx, List<String> *r_options) const {
 
+#ifdef TOOLS_ENABLED
+	const String quote_style = EDITOR_DEF("text_editor/completion/use_single_quotes", 0) ? "'" : "\"";
+#else
+	const String quote_style = "\"";
+#endif
+
 	String f = p_function.operator String();
 	if ((f == "get_shader_param" || f == "set_shader_param") && p_idx == 0) {
 
@@ -243,7 +253,7 @@ void ShaderMaterial::get_argument_options(const StringName &p_function, int p_id
 			List<PropertyInfo> pl;
 			shader->get_param_list(&pl);
 			for (List<PropertyInfo>::Element *E = pl.front(); E; E = E->next()) {
-				r_options->push_back("\"" + E->get().name.replace_first("shader_param/", "") + "\"");
+				r_options->push_back(quote_style + E->get().name.replace_first("shader_param/", "") + quote_style);
 			}
 		}
 	}