diff --git a/cesnet-mcc/terraform/terraform.tfvars b/cesnet-mcc/terraform/terraform.tfvars
index 7c8ffc779891dd0ad0da4ff6f60bd7fd41cecda7..a6a30f4168c86312d46c542bc49b7ab3927cee00 100644
--- a/cesnet-mcc/terraform/terraform.tfvars
+++ b/cesnet-mcc/terraform/terraform.tfvars
@@ -2,6 +2,7 @@
 ip_pool  = "public-muni-147-251-124-GROUP"
 net_name = "group-project-network"
 net6_name = "public-muni-v6-432"
+site_name = "cesnet-mcc"
 
 # These may need some adjustment for your provider
 master_cpus = 2    # 2 CPUs to match existing flavours
diff --git a/cesnet-mcc/terraform/vars.tf b/cesnet-mcc/terraform/vars.tf
index 1ca3b863c74bfd31011410ad248dc589a2f190d7..2e39ee9f30d82f65f521c5083aa74b2d670bf2d4 100644
--- a/cesnet-mcc/terraform/vars.tf
+++ b/cesnet-mcc/terraform/vars.tf
@@ -13,6 +13,11 @@ variable "net6_name" {
   description = "The name of the IPv6 network"
 }
 
+variable "site_name" {
+  type        = string
+  description = "Site identifier for internal host names"
+}
+
 variable "master_cpus" {
   type        = number
   description = "Number of CPUs for the master"
diff --git a/cesnet-mcc/terraform/vms.tf b/cesnet-mcc/terraform/vms.tf
index 4cb2bd3b3c177266aba723254bce0ec588a2dd24..bbcc52a7870917ce1d2ae637f40c0acdc600bd5a 100644
--- a/cesnet-mcc/terraform/vms.tf
+++ b/cesnet-mcc/terraform/vms.tf
@@ -100,7 +100,7 @@ data "openstack_compute_flavor_v2" "worker-flavor" {
 }
 
 resource "openstack_compute_instance_v2" "master" {
-  name     = "k8s-master"
+  name     = "k8s-${var.site_name}-master"
   image_id = data.openstack_images_image_v2.ubuntu.id
   # 4 cores 4 GB RAM
   flavor_id       = data.openstack_compute_flavor_v2.master-flavor.id
@@ -116,7 +116,7 @@ resource "openstack_compute_instance_v2" "master" {
 }
 
 resource "openstack_compute_instance_v2" "nfs" {
-  name            = "k8s-nfs"
+  name            = "k8s-${var.site_name}-nfs"
   image_id        = data.openstack_images_image_v2.ubuntu.id
   flavor_id       = data.openstack_compute_flavor_v2.worker-flavor.id
   security_groups = ["default", openstack_compute_secgroup_v2.ping.name, openstack_compute_secgroup_v2.ssh.name]
@@ -131,7 +131,7 @@ resource "openstack_compute_instance_v2" "nfs" {
 }
 
 resource "openstack_compute_instance_v2" "ingress" {
-  name            = "k8s-w-ingress"
+  name            = "k8s-${var.site_name}-w-ingress"
   image_id        = data.openstack_images_image_v2.ubuntu.id
   flavor_id       = data.openstack_compute_flavor_v2.worker-flavor.id
   security_groups = ["default", openstack_compute_secgroup_v2.ping.name, openstack_compute_secgroup_v2.ssh.name, openstack_compute_secgroup_v2.http.name]
@@ -147,7 +147,7 @@ resource "openstack_compute_instance_v2" "ingress" {
 
 resource "openstack_compute_instance_v2" "worker" {
   count           = var.extra_workers
-  name            = "k8s-worker-${count.index}"
+  name            = "k8s-${var.site_name}-worker-${count.index}"
   image_id        = data.openstack_images_image_v2.ubuntu.id
   flavor_id       = data.openstack_compute_flavor_v2.worker-flavor.id
   security_groups = ["default", openstack_compute_secgroup_v2.ping.name, openstack_compute_secgroup_v2.ssh.name]