diff --git a/changelog/10558.txt b/changelog/10558.txt
new file mode 100644
index 000000000..b3acedb77
--- /dev/null
+++ b/changelog/10558.txt
@@ -0,0 +1,3 @@
+```release-note:improvement
+secrets/gcp: Truncate ServiceAccount display names longer than 100 characters.
+```
\ No newline at end of file