diff --git a/AUTHORS b/AUTHORS
index 9413f9c2e..ab26dade8 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -26,6 +26,7 @@ Andrea Cimatoribus
 Andreas Motl
 Andreas Zeidler
 Andrew Shapton
+Andrew Svetlov
 Andrey Paramonov
 Andrzej Klajnert
 Andrzej Ostrowski
diff --git a/changelog/9510.feature.rst b/changelog/9510.feature.rst
new file mode 100644
index 000000000..05632b580
--- /dev/null
+++ b/changelog/9510.feature.rst
@@ -0,0 +1,9 @@
+Fixture types are now exported so the may be used in pytest plugin hooks.
+
+  The newly-exported types are:
+
+  - ``pytest.FixtureDef`` for :class:`FixtureDef <pytest.FixtureDef>`
+  - ``pytest.SubRequest`` for ``_pytest.fixtures.SubRequest``  (derived from :class:`FixtureRequest <pytest.FixtureRequest`).
+
+
+  They are used by ``pytest_fixture_setup`` and ``pytest_fixture_post_finalizer`` hook definitions.
diff --git a/doc/en/reference/reference.rst b/doc/en/reference/reference.rst
index ce97ad5f7..db831b250 100644
--- a/doc/en/reference/reference.rst
+++ b/doc/en/reference/reference.rst
@@ -905,7 +905,7 @@ File
 FixtureDef
 ~~~~~~~~~~
 
-.. autoclass:: _pytest.fixtures.FixtureDef()
+.. autoclass:: pytest.FixtureDef()
     :members:
     :show-inheritance: