diff --git a/news/12710.feature.rst b/news/12710.feature.rst
new file mode 100644
index 00000000000..4b65e4f041c
--- /dev/null
+++ b/news/12710.feature.rst
@@ -0,0 +1 @@
+Using ``--debug`` also enables verbose logging.
diff --git a/src/pip/_internal/cli/base_command.py b/src/pip/_internal/cli/base_command.py
index 362f84b6b0b..509f7463ba8 100644
--- a/src/pip/_internal/cli/base_command.py
+++ b/src/pip/_internal/cli/base_command.py
@@ -172,6 +172,8 @@ def _main(self, args: List[str]) -> int:
 
         # Set verbosity so that it can be used elsewhere.
         self.verbosity = options.verbose - options.quiet
+        if options.debug_mode:
+            self.verbosity = 2
 
         reconfigure(no_color=options.no_color)
         level_number = setup_logging(
diff --git a/tests/unit/test_base_command.py b/tests/unit/test_base_command.py
index 87665fbde43..33d2a95a3c2 100644
--- a/tests/unit/test_base_command.py
+++ b/tests/unit/test_base_command.py
@@ -107,6 +107,12 @@ def test_handle_pip_version_check_called(mock_handle_version_check: Mock) -> Non
     mock_handle_version_check.assert_called_once()
 
 
+def test_debug_enables_verbose_logs() -> None:
+    cmd = FakeCommand()
+    cmd.main(["fake", "--debug"])
+    assert cmd.verbosity >= 2
+
+
 def test_log_command_success(fixed_time: None, tmpdir: Path) -> None:
     """Test the --log option logs when command succeeds."""
     cmd = FakeCommand()