diff --git a/e2e-tests/tests/postgis/00-assert.yaml b/e2e-tests/tests/postgis/00-assert.yaml
new file mode 100644
index 000000000..ae5a062d8
--- /dev/null
+++ b/e2e-tests/tests/postgis/00-assert.yaml
@@ -0,0 +1,24 @@
+apiVersion: kuttl.dev/v1beta1
+kind: TestAssert
+timeout: 120
+---
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  name: perconapgclusters.pgv2.percona.com
+spec:
+  group: pgv2.percona.com
+  names:
+    kind: PerconaPGCluster
+    listKind: PerconaPGClusterList
+    plural: perconapgclusters
+    singular: perconapgcluster
+  scope: Namespaced
+---
+apiVersion: kuttl.dev/v1beta1
+kind: TestAssert
+metadata:
+  name: check-operator-deploy-status
+timeout: 120
+commands:
+  - script: kubectl assert exist-enhanced deployment percona-postgresql-operator -n ${OPERATOR_NS:-$NAMESPACE} --field-selector status.readyReplicas=1
diff --git a/e2e-tests/tests/postgis/00-deploy-operator.yaml b/e2e-tests/tests/postgis/00-deploy-operator.yaml
new file mode 100644
index 000000000..1aaca58be
--- /dev/null
+++ b/e2e-tests/tests/postgis/00-deploy-operator.yaml
@@ -0,0 +1,13 @@
+apiVersion: kuttl.dev/v1beta1
+kind: TestStep
+timeout: 10
+commands:
+  - script: |-
+      set -o errexit
+      set -o xtrace
+
+      source ../../functions
+      init_temp_dir # do this only in the first TestStep
+
+      deploy_operator
+      deploy_client
diff --git a/e2e-tests/tests/postgis/01-assert.yaml b/e2e-tests/tests/postgis/01-assert.yaml
new file mode 100644
index 000000000..ab55fd57f
--- /dev/null
+++ b/e2e-tests/tests/postgis/01-assert.yaml
@@ -0,0 +1,115 @@
+apiVersion: kuttl.dev/v1beta1
+kind: TestAssert
+timeout: 180
+---
+kind: StatefulSet
+apiVersion: apps/v1
+metadata:
+  name: postgis-repo-host
+  labels:
+    postgres-operator.crunchydata.com/cluster: postgis
+    postgres-operator.crunchydata.com/data: pgbackrest
+    postgres-operator.crunchydata.com/pgbackrest: ''
+    postgres-operator.crunchydata.com/pgbackrest-dedicated: ''
+  ownerReferences:
+    - apiVersion: postgres-operator.crunchydata.com/v1beta1
+      kind: PostgresCluster
+      name: postgis
+      controller: true
+      blockOwnerDeletion: true
+status:
+  observedGeneration: 1
+  replicas: 1
+  readyReplicas: 1
+  currentReplicas: 1
+  updatedReplicas: 1
+  collisionCount: 0
+---
+kind: StatefulSet
+apiVersion: apps/v1
+metadata:
+  labels:
+    postgres-operator.crunchydata.com/cluster: postgis
+    postgres-operator.crunchydata.com/data: postgres
+    postgres-operator.crunchydata.com/instance-set: instance1
+  ownerReferences:
+    - apiVersion: postgres-operator.crunchydata.com/v1beta1
+      kind: PostgresCluster
+      name: postgis
+      controller: true
+      blockOwnerDeletion: true
+status:
+  observedGeneration: 1
+  replicas: 1
+  readyReplicas: 1
+  currentReplicas: 1
+  updatedReplicas: 1
+  collisionCount: 0
+---
+kind: Deployment
+apiVersion: apps/v1
+metadata:
+  name: postgis-pgbouncer
+  labels:
+    postgres-operator.crunchydata.com/cluster: postgis
+    postgres-operator.crunchydata.com/role: pgbouncer
+  ownerReferences:
+    - apiVersion: postgres-operator.crunchydata.com/v1beta1
+      kind: PostgresCluster
+      name: postgis
+      controller: true
+      blockOwnerDeletion: true
+status:
+  observedGeneration: 1
+  replicas: 3
+  updatedReplicas: 3
+  readyReplicas: 3
+---
+apiVersion: postgres-operator.crunchydata.com/v1beta1
+kind: PostgresCluster
+metadata:
+  name: postgis
+  ownerReferences:
+    - apiVersion: pgv2.percona.com/v2
+      kind: PerconaPGCluster
+      name: postgis
+      controller: true
+      blockOwnerDeletion: true
+  finalizers:
+    - postgres-operator.crunchydata.com/finalizer
+status:
+  instances:
+    - name: instance1
+      readyReplicas: 3
+      replicas: 3
+      updatedReplicas: 3
+  observedGeneration: 1
+  pgbackrest:
+    repoHost:
+      apiVersion: apps/v1
+      kind: StatefulSet
+      ready: true
+    repos:
+      - bound: true
+        name: repo1
+  proxy:
+    pgBouncer:
+      readyReplicas: 3
+      replicas: 3
+---
+apiVersion: pgv2.percona.com/v2
+kind: PerconaPGCluster
+metadata:
+  name: postgis
+status:
+  pgbouncer:
+    ready: 3
+    size: 3
+  postgres:
+    instances:
+    - name: instance1
+      ready: 3
+      size: 3
+    ready: 3
+    size: 3
+  state: ready
diff --git a/e2e-tests/tests/postgis/01-create-cluster.yaml b/e2e-tests/tests/postgis/01-create-cluster.yaml
new file mode 100644
index 000000000..abcf680df
--- /dev/null
+++ b/e2e-tests/tests/postgis/01-create-cluster.yaml
@@ -0,0 +1,12 @@
+apiVersion: kuttl.dev/v1beta1
+kind: TestStep
+timeout: 100
+commands:
+  - script: |-
+      set -o errexit
+      set -o xtrace
+
+      source ../../functions
+
+      # Use the PostGIS-enabled PostgreSQL image
+      get_cr | yq eval '.spec.image = "'$IMAGE_POSTGIS'"' - | kubectl -n "${NAMESPACE}" apply -f -
diff --git a/e2e-tests/tests/postgis/02-assert.yaml b/e2e-tests/tests/postgis/02-assert.yaml
new file mode 100644
index 000000000..e49a83fe1
--- /dev/null
+++ b/e2e-tests/tests/postgis/02-assert.yaml
@@ -0,0 +1,28 @@
+apiVersion: kuttl.dev/v1beta1
+kind: TestAssert
+timeout: 120
+---
+apiVersion: postgres-operator.crunchydata.com/v1beta1
+kind: PostgresCluster
+metadata:
+  name: postgis
+status:
+  instances:
+    - name: instance1
+      readyReplicas: 3
+      replicas: 3
+      updatedReplicas: 3
+  pgbackrest:
+    repoHost:
+      ready: true
+  proxy:
+    pgBouncer:
+      readyReplicas: 3
+      replicas: 3
+---
+apiVersion: pgv2.percona.com/v2
+kind: PerconaPGCluster
+metadata:
+  name: postgis
+status:
+  state: ready
diff --git a/e2e-tests/tests/postgis/02-enable-postgis.yaml b/e2e-tests/tests/postgis/02-enable-postgis.yaml
new file mode 100644
index 000000000..569760e5b
--- /dev/null
+++ b/e2e-tests/tests/postgis/02-enable-postgis.yaml
@@ -0,0 +1,16 @@
+apiVersion: kuttl.dev/v1beta1
+kind: TestStep
+timeout: 100
+commands:
+  - script: |-
+      set -o errexit
+      set -o xtrace
+
+      source ../../functions
+
+      # Patch the underlying PostgresCluster to enable PostGIS.
+      # The Percona operator does not override postGISVersion on reconcile,
+      # so this setting is preserved and triggers PostGIS extension installation.
+      kubectl -n "${NAMESPACE}" patch postgrescluster postgis \
+        --type=merge \
+        --patch "{\"spec\":{\"postGISVersion\":\"${POSTGIS_VER}\"}}"
diff --git a/e2e-tests/tests/postgis/03-check-postgis.yaml b/e2e-tests/tests/postgis/03-check-postgis.yaml
new file mode 100644
index 000000000..be022b2ec
--- /dev/null
+++ b/e2e-tests/tests/postgis/03-check-postgis.yaml
@@ -0,0 +1,46 @@
+apiVersion: kuttl.dev/v1beta1
+kind: TestStep
+timeout: 120
+commands:
+  - script: |-
+      set -o errexit
+      set -o xtrace
+
+      source ../../functions
+
+      PSQL_URI="postgres:$(get_psql_user_pass postgis-pguser-postgres)@$(get_psql_user_host postgis-pguser-postgres)/postgres"
+
+      result=$(run_psql_local \
+        "SELECT left(postgis_version(),1);" \
+        "${PSQL_URI}")
+      if [[ "${result}" != "${POSTGIS_VER:0:1}" ]]; then
+        echo "PostGIS version check failed: expected major version ${POSTGIS_VER:0:1}, got ${result}"
+        exit 1
+      fi
+
+      for schema in tiger tiger_data topology; do
+        result=$(run_psql_local \
+          "SELECT nspname FROM pg_catalog.pg_namespace WHERE nspname='${schema}';" \
+          "${PSQL_URI}")
+        if [[ "${result}" != "${schema}" ]]; then
+          echo "PostGIS schema '${schema}' is missing"
+          exit 1
+        fi
+      done
+
+      result=$(run_psql_local \
+        "SELECT pg_typeof(ST_MakePoint(28.385200,-81.563900));" \
+        "${PSQL_URI}")
+      if [[ "${result}" != "geometry" ]]; then
+        echo "ST_MakePoint check failed: expected 'geometry', got '${result}'"
+        exit 1
+      fi
+
+      result=$(run_psql_local \
+        "SELECT ST_AsGeoJSON('SRID=4326;POINT(-118.4079 33.9434)'::geography);" \
+        "${PSQL_URI}")
+      expected='{"type":"Point","coordinates":[-118.4079,33.9434]}'
+      if [[ "${result}" != "${expected}" ]]; then
+        echo "ST_AsGeoJSON check failed: expected '${expected}', got '${result}'"
+        exit 1
+      fi
diff --git a/e2e-tests/tests/postgis/99-remove-cluster-gracefully.yaml b/e2e-tests/tests/postgis/99-remove-cluster-gracefully.yaml
new file mode 100644
index 000000000..6c0486bf4
--- /dev/null
+++ b/e2e-tests/tests/postgis/99-remove-cluster-gracefully.yaml
@@ -0,0 +1,22 @@
+apiVersion: kuttl.dev/v1beta1
+kind: TestStep
+delete:
+- apiVersion: pgv2.percona.com/v2
+  kind: PerconaPGCluster
+  metadata:
+    name: postgis
+- apiVersion: postgres-operator.crunchydata.com/v1beta1
+  kind: PostgresCluster
+  metadata:
+    name: postgis
+commands:
+  - script: |-
+      set -o errexit
+      set -o xtrace
+
+      source ../../functions
+
+      remove_all_finalizers
+      check_operator_panic
+      destroy_operator
+    timeout: 60
diff --git a/e2e-tests/vars.sh b/e2e-tests/vars.sh
index 92ea4e92c..bffb1e71b 100755
--- a/e2e-tests/vars.sh
+++ b/e2e-tests/vars.sh
@@ -33,6 +33,7 @@ fi
 export IMAGE_PGBOUNCER=${IMAGE_PGBOUNCER:-"${IMAGE_BASE}:main-pgbouncer$PG_VER"}
 export IMAGE_POSTGRESQL=${IMAGE_POSTGRESQL:-"${IMAGE_BASE}:main-ppg$PG_VER-postgres"}
 export IMAGE_BACKREST=${IMAGE_BACKREST:-"${IMAGE_BASE}:main-pgbackrest$PG_VER"}
+export IMAGE_POSTGIS=${s:-"docker.io/percona/percona-postgresql-operator:2.8.1-ppg17.7-postgres-gis3.3.8"}
 export IMAGE_UPGRADE=${IMAGE_UPGRADE:-"${IMAGE_BASE}:main-upgrade"}
 export BUCKET=${BUCKET:-"pg-operator-testing"}
 export PMM_SERVER_VERSION=${PMM_SERVER_VERSION:-"9.9.9"}