diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
new file mode 100644
index 0000000000..d6cd75f1d0
--- /dev/null
+++ b/.github/CODEOWNERS
@@ -0,0 +1,2 @@
+# Automatically request reviews from the synapse-core team when a pull request comes in.
+* @matrix-org/synapse-core
\ No newline at end of file
diff --git a/changelog.d/10994.misc b/changelog.d/10994.misc
new file mode 100644
index 0000000000..0a8538b01e
--- /dev/null
+++ b/changelog.d/10994.misc
@@ -0,0 +1 @@
+Add a `CODEOWNERS` file to automatically request reviews from the `@matrix-org/synapse-core` team on new pull requests.