diff --git a/changelog.d/20240621_105210_mdickinson_add_event_types_to_api.rst b/changelog.d/20240621_105210_mdickinson_add_event_types_to_api.rst
new file mode 100644
index 000000000..34f2f1cf2
--- /dev/null
+++ b/changelog.d/20240621_105210_mdickinson_add_event_types_to_api.rst
@@ -0,0 +1,36 @@
+.. A new scriv changelog fragment.
+..
+.. Uncomment the header that is right (remove the leading dots).
+..
+.. Removed
+.. -------
+..
+.. - A bullet item for the Removed category.
+..
+Added
+-----
+
+- Event types for the ``event`` received by observers have been made
+  available in ``traits.observation.api``. This is useful for those
+  wanting to use the types in type annotations. (#1805)
+
+.. Changed
+.. -------
+..
+.. - A bullet item for the Changed category.
+..
+.. Deprecated
+.. ----------
+..
+.. - A bullet item for the Deprecated category.
+..
+.. Fixed
+.. -----
+..
+.. - A bullet item for the Fixed category.
+..
+.. Security
+.. --------
+..
+.. - A bullet item for the Security category.
+..
diff --git a/traits/observation/api.py b/traits/observation/api.py
index 28e855df8..9101eec16 100644
--- a/traits/observation/api.py
+++ b/traits/observation/api.py
@@ -8,6 +8,13 @@
 #
 # Thanks for using Enthought open source!
 
+from traits.observation.events import (
+    DictChangeEvent,
+    ListChangeEvent,
+    SetChangeEvent,
+    TraitChangeEvent,
+)
+
 from traits.observation.exception_handling import (
     pop_exception_handler,
     push_exception_handler,
diff --git a/traits/observation/tests/test_dict_change_event.py b/traits/observation/tests/test_dict_change_event.py
index 6a23d5aa2..c342dd3a1 100644
--- a/traits/observation/tests/test_dict_change_event.py
+++ b/traits/observation/tests/test_dict_change_event.py
@@ -10,10 +10,8 @@
 
 import unittest
 
-from traits.observation._dict_change_event import (
-    DictChangeEvent,
-    dict_event_factory,
-)
+from traits.observation.api import DictChangeEvent
+from traits.observation._dict_change_event import dict_event_factory
 from traits.trait_dict_object import TraitDict
 
 
diff --git a/traits/observation/tests/test_list_change_event.py b/traits/observation/tests/test_list_change_event.py
index a5422bb3d..7f1a0ebee 100644
--- a/traits/observation/tests/test_list_change_event.py
+++ b/traits/observation/tests/test_list_change_event.py
@@ -10,10 +10,8 @@
 
 import unittest
 
-from traits.observation._list_change_event import (
-    ListChangeEvent,
-    list_event_factory,
-)
+from traits.observation.api import ListChangeEvent
+from traits.observation._list_change_event import list_event_factory
 from traits.trait_list_object import TraitList
 
 
diff --git a/traits/observation/tests/test_set_change_event.py b/traits/observation/tests/test_set_change_event.py
index 134e4b161..7554de003 100644
--- a/traits/observation/tests/test_set_change_event.py
+++ b/traits/observation/tests/test_set_change_event.py
@@ -10,10 +10,8 @@
 
 import unittest
 
-from traits.observation._set_change_event import (
-    SetChangeEvent,
-    set_event_factory,
-)
+from traits.observation.api import SetChangeEvent
+from traits.observation._set_change_event import set_event_factory
 from traits.trait_set_object import TraitSet
 
 
diff --git a/traits/observation/tests/test_trait_change_event.py b/traits/observation/tests/test_trait_change_event.py
index a39aa5ff1..d87e4e6ad 100644
--- a/traits/observation/tests/test_trait_change_event.py
+++ b/traits/observation/tests/test_trait_change_event.py
@@ -12,10 +12,8 @@
 
 from traits.has_traits import HasTraits
 from traits.trait_types import Int
-from traits.observation._trait_change_event import (
-    trait_event_factory,
-    TraitChangeEvent,
-)
+from traits.observation.api import TraitChangeEvent
+from traits.observation._trait_change_event import trait_event_factory
 
 
 class TestTraitChangeEvent(unittest.TestCase):