diff --git a/roles/grafana/defaults/main.yaml b/roles/grafana/defaults/main.yaml
index b3b1519..e540220 100644
--- a/roles/grafana/defaults/main.yaml
+++ b/roles/grafana/defaults/main.yaml
@@ -1,4 +1,6 @@
 ---
+grafana_additional_networks: []
+
 grafana_oauth_name: ""
 grafana_oauth_client_id: ""
 grafana_oauth_auth_url: ""
diff --git a/roles/grafana/meta/argument_specs.yml b/roles/grafana/meta/argument_specs.yml
index 43bb0ca..59be3a0 100644
--- a/roles/grafana/meta/argument_specs.yml
+++ b/roles/grafana/meta/argument_specs.yml
@@ -7,6 +7,14 @@ argument_specs:
         description: The domain grafana should be available on
         type: str
         required: true
+      grafana_additional_networks:
+        description: >-
+          A list of additional podman networks for the grafana container (in
+          addition to grafana network).
+        type: list
+        required: false
+        default: []
+        elements: str
 
       grafana_oauth_name:
         description: >-
diff --git a/roles/grafana/tasks/main.yml b/roles/grafana/tasks/main.yml
index bb0e3d2..0adba87 100644
--- a/roles/grafana/tasks/main.yml
+++ b/roles/grafana/tasks/main.yml
@@ -14,6 +14,7 @@
       - "{{ grafana_domain }}"
     service_database_type: postgres
     service_postgres_tag: 17-alpine
+    service_container_additional_networks: "{{ grafana_additional_networks }}"
     service_container_env:
       GF_DATABASE_TYPE: postgres
       GF_DATABASE_HOST: grafana-postgres:5432