diff --git a/.evergreen/config.yml b/.evergreen/config.yml
index e718266efd..36c10f5632 100644
--- a/.evergreen/config.yml
+++ b/.evergreen/config.yml
@@ -2240,6 +2240,10 @@ axes:
         display_name: "Python 3.12"
         variables:
           PYTHON_BINARY: "/opt/python/3.12/bin/python3"
+      - id: "3.13"
+        display_name: "Python 3.13"
+        variables:
+          PYTHON_BINARY: "/opt/python/3.13/bin/python3"
       - id: "pypy3.9"
         display_name: "PyPy 3.9"
         variables:
@@ -2272,6 +2276,10 @@ axes:
         display_name: "Python 3.12"
         variables:
           PYTHON_BINARY: "C:/python/Python312/python.exe"
+      - id: "3.13"
+        display_name: "Python 3.13"
+        variables:
+          PYTHON_BINARY: "C:/python/Python313/python.exe"
 
   - id: python-version-windows-32
     display_name: "Python"
@@ -2296,6 +2304,10 @@ axes:
         display_name: "32-bit Python 3.12"
         variables:
           PYTHON_BINARY: "C:/python/32/Python312/python.exe"
+      - id: "3.13"
+        display_name: "32-bit Python 3.13"
+        variables:
+          PYTHON_BINARY: "C:/python/32/Python313/python.exe"
 
   # Choice of mod_wsgi version
   - id: mod-wsgi-version
@@ -2559,7 +2571,7 @@ buildvariants:
   # Only test "noauth" with Python 3.8.
   exclude_spec:
     platform: rhel8
-    python-version: ["3.9", "3.10", "pypy3.9", "pypy3.10"]
+    python-version: ["3.9", "3.10", "3.11", "3.12", "3.13", "pypy3.9", "pypy3.10"]
     auth: "noauth"
     ssl: "ssl"
     pyopenssl: "*"
@@ -2665,7 +2677,7 @@ buildvariants:
   exclude_spec:
    # Don't test green frameworks on these Python versions.
    - platform: rhel8
-     python-version: ["pypy3.9", "pypy3.10"]
+     python-version: ["pypy3.9", "pypy3.10", "3.13"]
      green-framework: "*"
      auth-ssl: "*"
   display_name: "${green-framework} ${python-version} ${platform} ${auth-ssl}"
@@ -2788,7 +2800,7 @@ buildvariants:
 - matrix_name: "tests-mod-wsgi"
   matrix_spec:
     platform: ubuntu-22.04
-    python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+    python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
     mod-wsgi-version: "*"
   display_name: "${mod-wsgi-version} ${python-version} ${platform}"
   tasks:
diff --git a/doc/changelog.rst b/doc/changelog.rst
index c008066c22..ba3cba8322 100644
--- a/doc/changelog.rst
+++ b/doc/changelog.rst
@@ -10,6 +10,7 @@ Changes in Version 4.9.0
 PyMongo 4.9 brings a number of improvements including:
 
 - Added support for MongoDB 8.0.
+- Added support for Python 3.13.
 - A new asynchronous API with full asyncio support.
 - Added support for In-Use Encryption range queries with MongoDB 8.0.
   Added :attr:`~pymongo.encryption.Algorithm.RANGE`.
diff --git a/pyproject.toml b/pyproject.toml
index 19db00f19a..b64c7d6031 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -35,6 +35,7 @@ classifiers = [
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
     "Topic :: Database",
     "Typing :: Typed",
 ]