diff --git a/AUTHORS b/AUTHORS
index d1f1b5503..f91b31e7f 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -98,6 +98,7 @@ David Szotten
 David Vierra
 Daw-Ran Liou
 Debi Mishra
+Delgan
 Denis Kirisov
 Denivy Braiam Rück
 Dhiren Serai
diff --git a/changelog/9619.feature.rst b/changelog/9619.feature.rst
new file mode 100644
index 000000000..55ac43c1e
--- /dev/null
+++ b/changelog/9619.feature.rst
@@ -0,0 +1 @@
+Added a new ``pytest_modify_args`` hook.
diff --git a/doc/en/reference/reference.rst b/doc/en/reference/reference.rst
index 4ea391be2..a1ff85ab1 100644
--- a/doc/en/reference/reference.rst
+++ b/doc/en/reference/reference.rst
@@ -627,6 +627,8 @@ Initialization hooks
 
 Initialization hooks called for plugins and ``conftest.py`` files.
 
+.. hook:: pytest_modify_args
+.. autofunction:: pytest_modify_args
 .. hook:: pytest_addoption
 .. autofunction:: pytest_addoption
 .. hook:: pytest_addhooks
diff --git a/src/_pytest/config/__init__.py b/src/_pytest/config/__init__.py
index b3173d7d7..4c75ee776 100644
--- a/src/_pytest/config/__init__.py
+++ b/src/_pytest/config/__init__.py
@@ -1318,6 +1318,7 @@ class Config:
             kwargs=dict(pluginmanager=self.pluginmanager)
         )
         self._preparse(args, addopts=addopts)
+        self.hook.pytest_modify_args(args=args)
         # XXX deprecated hook:
         self.hook.pytest_cmdline_preparse(config=self, args=args)
         self._parser.after_preparse = True  # type: ignore
diff --git a/src/_pytest/hookspec.py b/src/_pytest/hookspec.py
index a03c0e9ab..84efd515e 100644
--- a/src/_pytest/hookspec.py
+++ b/src/_pytest/hookspec.py
@@ -172,6 +172,13 @@ def pytest_cmdline_preparse(config: "Config", args: List[str]) -> None:
     """
 
 
+def pytest_modify_args(args: List[str]) -> None:
+    """Modify command line arguments before option parsing.
+    
+    :param List[str] args: Arguments passed on the command line.
+    """
+
+
 @hookspec(firstresult=True)
 def pytest_cmdline_main(config: "Config") -> Optional[Union["ExitCode", int]]:
     """Called for performing the main command line action. The default
diff --git a/testing/test_config.py b/testing/test_config.py
index c2e3fe5bb..63c884f5c 100644
--- a/testing/test_config.py
+++ b/testing/test_config.py
@@ -1296,6 +1296,17 @@ def test_load_initial_conftest_last_ordering(_config_for_test):
     ]
 
 
+def test_modify_args_hook(pytester: Pytester) -> None:
+    pytester.makeconftest(
+        """
+        def pytest_modify_args(args):
+            args.append("-h")
+    """
+    )
+    result = pytester.runpytest()
+    result.stdout.fnmatch_lines(["*pytest*", "*-h*"])
+
+
 def test_get_plugin_specs_as_list() -> None:
     def exp_match(val: object) -> str:
         return (