diff --git a/etc/kayobe/kolla/config/bifrost/bifrost.yml b/etc/kayobe/kolla/config/bifrost/bifrost.yml
index d4b585b6a..16ea3ac3b 100644
--- a/etc/kayobe/kolla/config/bifrost/bifrost.yml
+++ b/etc/kayobe/kolla/config/bifrost/bifrost.yml
@@ -5,3 +5,6 @@
 use_cirros: true
 cirros_deploy_image_upstream_url: "{{ stackhpc_overcloud_host_image_url }}"
 {% endif %}
+
+# Disable debug logging to avoid generating large log files
+ironic_debug: false
diff --git a/releasenotes/notes/bifrost-disable-ironic-debug-5427c6f1160779aa.yaml b/releasenotes/notes/bifrost-disable-ironic-debug-5427c6f1160779aa.yaml
new file mode 100644
index 000000000..0a945ad5d
--- /dev/null
+++ b/releasenotes/notes/bifrost-disable-ironic-debug-5427c6f1160779aa.yaml
@@ -0,0 +1,5 @@
+---
+upgrade:
+  - |
+    Bifrost Ironic debug logging is now disabled by default. Change
+    ``ironic_debug`` to ``true`` to revert.