diff --git a/defaults/main.yml b/defaults/main.yml
index 1a57b9f4..2f20322b 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -187,6 +187,10 @@ nova_keystone_auth_plugin: password
 ## Nova enabled apis
 nova_enabled_apis: "osapi_compute,metadata"
 
+## Domain name used to configure FQDN for instances. When empty, only the hostname without
+## a domain will be configured.
+nova_dhcp_domain: "{{ dhcp_domain | default('') }}"
+
 ## Nova v2.1
 nova_service_name: nova
 nova_service_type: compute
diff --git a/releasenotes/notes/nova_dhcp_domain-6e1d4192fb6c7909.yaml b/releasenotes/notes/nova_dhcp_domain-6e1d4192fb6c7909.yaml
new file mode 100644
index 00000000..9f1cc901
--- /dev/null
+++ b/releasenotes/notes/nova_dhcp_domain-6e1d4192fb6c7909.yaml
@@ -0,0 +1,7 @@
+---
+
+features:
+  - |
+    Re-added ``nova_dhcp_domain`` variable that defaults to the
+    ``dhcp_domain``. When set to empty string, only the hostname without
+    a domain will be configured for the instances.
diff --git a/templates/nova.conf.j2 b/templates/nova.conf.j2
index f3813e20..7b385103 100644
--- a/templates/nova.conf.j2
+++ b/templates/nova.conf.j2
@@ -273,6 +273,7 @@ secure_proxy_ssl_header = {{ nova_secure_proxy_ssl_header }}
 [api]
 use_forwarded_for = {{ nova_network_services[nova_network_type]['use_forwarded_for'] | bool }}
 vendordata_jsonfile_path = /etc/nova/vendor_data.json
+dhcp_domain = {{ nova_dhcp_domain }}
 
 [scheduler]
 workers = {{ nova_scheduler_workers | default(nova_api_threads) }}