diff --git a/.zuul.yaml b/.zuul.yaml
index c599e2e594..6dbb5bacbe 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -98,6 +98,16 @@
         nodes:
           - controller
 
+- nodeset:
+    name: devstack-single-node-rockylinux-9
+    nodes:
+      - name: controller
+        label: rockylinux-9
+    groups:
+      - name: tempest
+        nodes:
+          - controller
+
 - nodeset:
     name: openstack-two-node
     nodes:
@@ -667,6 +677,15 @@
     vars:
       configure_swap_size: 4096
 
+- job:
+    name: devstack-platform-rocky-blue-onyx
+    parent: tempest-full-py3
+    description: Rocky Linux 9 Blue Onyx platform test
+    nodeset: devstack-single-node-rockylinux-9
+    timeout: 9000
+    vars:
+      configure_swap_size: 4096
+
 - job:
     name: devstack-platform-ubuntu-jammy
     parent: tempest-full-py3
@@ -834,6 +853,7 @@
         - devstack-platform-fedora-latest
         - devstack-platform-centos-9-stream
         - devstack-platform-debian-bullseye
+        - devstack-platform-rocky-blue-onyx
         - devstack-platform-ubuntu-jammy
         - devstack-platform-ubuntu-jammy-ovn-source
         - devstack-platform-ubuntu-jammy-ovs
diff --git a/doc/source/index.rst b/doc/source/index.rst
index 0434d68838..626d5e1a85 100644
--- a/doc/source/index.rst
+++ b/doc/source/index.rst
@@ -38,7 +38,7 @@ Install Linux
 
 Start with a clean and minimal install of a Linux system. DevStack
 attempts to support the two latest LTS releases of Ubuntu, the
-latest/current Fedora version, CentOS/RHEL 8 and OpenSUSE.
+latest/current Fedora version, CentOS/RHEL/Rocky Linux 9 and OpenSUSE.
 
 If you do not have a preference, Ubuntu 20.04 (Focal Fossa) is the
 most tested, and will probably go the smoothest.
diff --git a/functions-common b/functions-common
index e9984fd65e..0aee5d163e 100644
--- a/functions-common
+++ b/functions-common
@@ -418,6 +418,9 @@ function GetOSVersion {
         os_RELEASE=${VERSION_ID}
         os_CODENAME="n/a"
         os_VENDOR=$(echo $NAME | tr -d '[:space:]')
+    elif [[ "${ID}${VERSION}" =~ "rocky9" ]]; then
+        os_VENDOR="Rocky"
+        os_RELEASE=${VERSION_ID}
     else
         _ensure_lsb_release
 
@@ -466,6 +469,7 @@ function GetDistro {
         "$os_VENDOR" =~ (AlmaLinux) || \
         "$os_VENDOR" =~ (Scientific) || \
         "$os_VENDOR" =~ (OracleServer) || \
+        "$os_VENDOR" =~ (Rocky) || \
         "$os_VENDOR" =~ (Virtuozzo) ]]; then
         # Drop the . release as we assume it's compatible
         # XXX re-evaluate when we get RHEL10
@@ -513,7 +517,7 @@ function is_oraclelinux {
 
 
 # Determine if current distribution is a Fedora-based distribution
-# (Fedora, RHEL, CentOS, etc).
+# (Fedora, RHEL, CentOS, Rocky, etc).
 # is_fedora
 function is_fedora {
     if [[ -z "$os_VENDOR" ]]; then
@@ -523,6 +527,7 @@ function is_fedora {
     [ "$os_VENDOR" = "Fedora" ] || [ "$os_VENDOR" = "Red Hat" ] || \
         [ "$os_VENDOR" = "RedHatEnterpriseServer" ] || \
         [ "$os_VENDOR" = "RedHatEnterprise" ] || \
+        [ "$os_VENDOR" = "Rocky" ] || \
         [ "$os_VENDOR" = "CentOS" ] || [ "$os_VENDOR" = "CentOSStream" ] || \
         [ "$os_VENDOR" = "AlmaLinux" ] || \
         [ "$os_VENDOR" = "OracleServer" ] || [ "$os_VENDOR" = "Virtuozzo" ]