diff --git a/netbox/virtualization/apps.py b/netbox/virtualization/apps.py
index ebcc591bf..65ce0f112 100644
--- a/netbox/virtualization/apps.py
+++ b/netbox/virtualization/apps.py
@@ -17,7 +17,7 @@ class VirtualizationConfig(AppConfig):
 
         # Register denormalized fields
         denormalized.register(VirtualMachine, 'cluster', {
-            'site': 'site',
+            'site': '_site',
         })
 
         # Register counters
diff --git a/netbox/virtualization/forms/model_forms.py b/netbox/virtualization/forms/model_forms.py
index c18d784b4..3a1517ca6 100644
--- a/netbox/virtualization/forms/model_forms.py
+++ b/netbox/virtualization/forms/model_forms.py
@@ -123,6 +123,12 @@ class ClusterForm(TenancyForm, NetBoxModelForm):
             if self.instance and scope_type_id != self.instance.scope_type_id:
                 self.initial['scope'] = None
 
+    def clean(self):
+        super().clean()
+
+        # Assign the selected scope (if any)
+        self.instance.scope = self.cleaned_data.get('scope')
+
 
 class ClusterAddDevicesForm(forms.Form):
     region = DynamicModelChoiceField(
diff --git a/netbox/virtualization/models/clusters.py b/netbox/virtualization/models/clusters.py
index da4a68df5..16ac650b3 100644
--- a/netbox/virtualization/models/clusters.py
+++ b/netbox/virtualization/models/clusters.py
@@ -164,13 +164,21 @@ class Cluster(ContactsMixin, PrimaryModel):
     def clean(self):
         super().clean()
 
+        site = None
+        if self.scope_type:
+            scope_type = self.scope_type.model_class()
+            if scope_type == apps.get_model('dcim', 'site'):
+                site = self.scope
+            elif scope_type == apps.get_model('dcim', 'location'):
+                site = self.scope.site
+
         # If the Cluster is assigned to a Site, verify that all host Devices belong to that Site.
-        if not self._state.adding and self.site:
-            if nonsite_devices := Device.objects.filter(cluster=self).exclude(site=self.site).count():
+        if not self._state.adding and site:
+            if nonsite_devices := Device.objects.filter(cluster=self).exclude(site=site).count():
                 raise ValidationError({
                     'site': _(
                         "{count} devices are assigned as hosts for this cluster but are not in site {site}"
-                    ).format(count=nonsite_devices, site=self.site)
+                    ).format(count=nonsite_devices, site=site)
                 })
 
     def save(self, *args, **kwargs):
diff --git a/netbox/virtualization/models/virtualmachines.py b/netbox/virtualization/models/virtualmachines.py
index e7bdc139f..a48feddb9 100644
--- a/netbox/virtualization/models/virtualmachines.py
+++ b/netbox/virtualization/models/virtualmachines.py
@@ -181,7 +181,7 @@ class VirtualMachine(ContactsMixin, ImageAttachmentsMixin, RenderConfigMixin, Co
             })
 
         # Validate site for cluster & VM
-        if self.cluster and self.site and self.cluster.site and self.cluster.site != self.site:
+        if self.cluster and self.site and self.cluster._site and self.cluster._site != self.site:
             raise ValidationError({
                 'cluster': _(
                     'The selected cluster ({cluster}) is not assigned to this site ({site}).'
diff --git a/netbox/virtualization/tests/test_api.py b/netbox/virtualization/tests/test_api.py
index a30cf0910..d11b46b66 100644
--- a/netbox/virtualization/tests/test_api.py
+++ b/netbox/virtualization/tests/test_api.py
@@ -157,11 +157,12 @@ class VirtualMachineTest(APIViewTestCases.APIViewTestCase):
         Site.objects.bulk_create(sites)
 
         clusters = (
-            Cluster(name='Cluster 1', type=clustertype, site=sites[0], group=clustergroup),
-            Cluster(name='Cluster 2', type=clustertype, site=sites[1], group=clustergroup),
+            Cluster(name='Cluster 1', type=clustertype, scope=sites[0], group=clustergroup),
+            Cluster(name='Cluster 2', type=clustertype, scope=sites[1], group=clustergroup),
             Cluster(name='Cluster 3', type=clustertype),
         )
-        Cluster.objects.bulk_create(clusters)
+        for cluster in clusters:
+            cluster.save()
 
         device1 = create_test_device('device1', site=sites[0], cluster=clusters[0])
         device2 = create_test_device('device2', site=sites[1], cluster=clusters[1])
diff --git a/netbox/virtualization/tests/test_models.py b/netbox/virtualization/tests/test_models.py
index a4e8d7947..7be423bf1 100644
--- a/netbox/virtualization/tests/test_models.py
+++ b/netbox/virtualization/tests/test_models.py
@@ -54,11 +54,12 @@ class VirtualMachineTestCase(TestCase):
         Site.objects.bulk_create(sites)
 
         clusters = (
-            Cluster(name='Cluster 1', type=cluster_type, site=sites[0]),
-            Cluster(name='Cluster 2', type=cluster_type, site=sites[1]),
-            Cluster(name='Cluster 3', type=cluster_type, site=None),
+            Cluster(name='Cluster 1', type=cluster_type, scope=sites[0]),
+            Cluster(name='Cluster 2', type=cluster_type, scope=sites[1]),
+            Cluster(name='Cluster 3', type=cluster_type, scope=None),
         )
-        Cluster.objects.bulk_create(clusters)
+        for cluster in clusters:
+            cluster.save()
 
         # VM with site only should pass
         VirtualMachine(name='vm1', site=sites[0]).full_clean()
diff --git a/netbox/virtualization/tests/test_views.py b/netbox/virtualization/tests/test_views.py
index f8f870353..b9cb7b437 100644
--- a/netbox/virtualization/tests/test_views.py
+++ b/netbox/virtualization/tests/test_views.py
@@ -1,3 +1,4 @@
+from django.contrib.contenttypes.models import ContentType
 from django.test import override_settings
 from django.urls import reverse
 from netaddr import EUI
@@ -202,10 +203,11 @@ class VirtualMachineTestCase(ViewTestCases.PrimaryObjectViewTestCase):
         clustertype = ClusterType.objects.create(name='Cluster Type 1', slug='cluster-type-1')
 
         clusters = (
-            Cluster(name='Cluster 1', type=clustertype, site=sites[0]),
-            Cluster(name='Cluster 2', type=clustertype, site=sites[1]),
+            Cluster(name='Cluster 1', type=clustertype, scope=sites[0]),
+            Cluster(name='Cluster 2', type=clustertype, scope=sites[1]),
         )
-        Cluster.objects.bulk_create(clusters)
+        for cluster in clusters:
+            cluster.save()
 
         devices = (
             create_test_device('device1', site=sites[0], cluster=clusters[0]),
@@ -293,7 +295,7 @@ class VMInterfaceTestCase(ViewTestCases.DeviceComponentViewTestCase):
         site = Site.objects.create(name='Site 1', slug='site-1')
         role = DeviceRole.objects.create(name='Device Role 1', slug='device-role-1')
         clustertype = ClusterType.objects.create(name='Cluster Type 1', slug='cluster-type-1')
-        cluster = Cluster.objects.create(name='Cluster 1', type=clustertype, site=site)
+        cluster = Cluster.objects.create(name='Cluster 1', type=clustertype, scope=site)
         virtualmachines = (
             VirtualMachine(name='Virtual Machine 1', site=site, cluster=cluster, role=role),
             VirtualMachine(name='Virtual Machine 2', site=site, cluster=cluster, role=role),