diff --git a/CHANGELOG.md b/CHANGELOG.md
index de4049c614..b7dcd9c0b3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,7 @@ This project adheres to [Semantic Versioning](https://semver.org/).
 ## Added
 - [#3534]((https://github.com/plotly/dash/pull/3534) Adds `playsInline` prop to `html.Video`.  Based on [#2338]((https://github.com/plotly/dash/pull/2338)
 - [#3541](https://github.com/plotly/dash/pull/3541) Add `attributes` dictionary to be be formatted on script/link (_js_dist/_css_dist) tags of the index, allows for `type="module"` or `type="importmap"`. [#3538](https://github.com/plotly/dash/issues/3538)
+- [#3564](https://github.com/plotly/dash/pull/3564) Add new parameter `hide_all_callbacks` to `run()`. Closes [#3493](https://github.com/plotly/dash/issues/3493)
 
 ## Fixed
 - [#3541](https://github.com/plotly/dash/pull/3541) Remove last reference of deprecated `pkg_resources`.
diff --git a/dash/_callback.py b/dash/_callback.py
index fa41cde51f..0b63f17740 100644
--- a/dash/_callback.py
+++ b/dash/_callback.py
@@ -79,7 +79,7 @@ def callback(
     on_error: Optional[Callable[[Exception], Any]] = None,
     api_endpoint: Optional[str] = None,
     optional: Optional[bool] = False,
-    hidden: Optional[bool] = False,
+    hidden: Optional[bool] = None,
     **_kwargs,
 ) -> Callable[..., Any]:
     """
@@ -277,7 +277,7 @@ def insert_callback(
     dynamic_creator: Optional[bool] = False,
     no_output=False,
     optional=False,
-    hidden=False,
+    hidden=None,
 ):
     if prevent_initial_call is None:
         prevent_initial_call = config_prevent_initial_callbacks
@@ -651,7 +651,7 @@ def register_callback(
         running=running,
         no_output=not has_output,
         optional=_kwargs.get("optional", False),
-        hidden=_kwargs.get("hidden", False),
+        hidden=_kwargs.get("hidden", None),
     )
 
     # pylint: disable=too-many-locals
diff --git a/dash/dash.py b/dash/dash.py
index 749e38d107..95df01e64c 100644
--- a/dash/dash.py
+++ b/dash/dash.py
@@ -544,6 +544,7 @@ def __init__(  # pylint: disable=too-many-statements
             include_pages_meta=include_pages_meta,
             description=description,
             health_endpoint=health_endpoint,
+            hide_all_callbacks=False,
         )
         self.config.set_read_only(
             [
@@ -1646,6 +1647,16 @@ def _setup_server(self):
             self.callback_map[k] = _callback.GLOBAL_CALLBACK_MAP.pop(k)
 
         self._callback_list.extend(_callback.GLOBAL_CALLBACK_LIST)
+
+        # For each callback function, if the hidden parameter uses the default value None,
+        # replace it with the actual value of the self.config.hide_all_callbacks.
+        self._callback_list = [
+            {**_callback, "hidden": self.config.get("hide_all_callbacks", False)}
+            if _callback.get("hidden") is None
+            else _callback
+            for _callback in self._callback_list
+        ]
+
         _callback.GLOBAL_CALLBACK_LIST.clear()
 
         _validate.validate_background_callbacks(self.callback_map)
@@ -2293,6 +2304,7 @@ def run(
         port: Optional[Union[str, int]] = None,
         proxy: Optional[str] = None,
         debug: Optional[bool] = None,
+        hide_all_callbacks: bool = False,
         jupyter_mode: Optional[JupyterDisplayMode] = None,
         jupyter_width: str = "100%",
         jupyter_height: int = 650,
@@ -2341,6 +2353,14 @@ def run(
             via ``run``. env: ``DASH_DEBUG``
         :type debug: bool
 
+        :param hide_all_callbacks: Default ``False``: Sets the default value of
+            ``hidden`` for all callbacks added to the app. Normally all callbacks
+            are visible in the devtools callbacks tab. You can set this for
+            individual callbacks by setting ``hidden`` in their definitions, or set
+            it ``True`` here in which case you must explicitly set it ``False`` for
+            those callbacks you wish to remain visible in the devtools callbacks tab.
+        :type hide_all_callbacks: bool
+
         :param dev_tools_ui: Show the dev tools UI. env: ``DASH_UI``
         :type dev_tools_ui: bool
 
@@ -2407,6 +2427,10 @@ def run(
 
         :return:
         """
+
+        # Update self.config.hide_all_callbacks
+        self.config.update({"hide_all_callbacks": hide_all_callbacks})
+
         if debug is None:
             debug = get_combined_config("debug", None, False)