diff --git a/awx/main/access.py b/awx/main/access.py
index 7b7ede48e4..0582669173 100644
--- a/awx/main/access.py
+++ b/awx/main/access.py
@@ -373,7 +373,10 @@ class InstanceAccess(BaseAccess):
     model = Instance
 
     def get_queryset(self):
-        return Instance.objects.filter(rampart_groups__in=self.user.get_queryset(InstanceGroup))
+        if self.user.is_superuser or self.user.is_system_auditor:
+            return Instance.objects.all().distinct()
+        else:
+            return Instance.objects.filter(rampart_groups__in=self.user.get_queryset(InstanceGroup)).distinct()
 
     def can_add(self, data):
         return False
diff --git a/awx/main/tests/functional/test_instances.py b/awx/main/tests/functional/test_instances.py
index 780900b028..6444d0d0d3 100644
--- a/awx/main/tests/functional/test_instances.py
+++ b/awx/main/tests/functional/test_instances.py
@@ -1,6 +1,8 @@
 import pytest
 
 from awx.main.models import AdHocCommand, InventoryUpdate, Job, JobTemplate, ProjectUpdate
+from awx.main.models import Instance
+from awx.api.versioning import reverse
 
 
 @pytest.mark.django_db
@@ -8,6 +10,26 @@ def test_default_tower_instance_group(default_instance_group, job_factory):
     assert default_instance_group in job_factory().preferred_instance_groups
 
 
+@pytest.mark.django_db
+def test_instance_dup(org_admin, organization, project, instance_factory, instance_group_factory, get, system_auditor):
+    i1 = instance_factory("i1")
+    i2 = instance_factory("i2")
+    i3 = instance_factory("i3")
+    ig_all = instance_group_factory("all", instances=[i1, i2, i3])
+    ig_dup = instance_group_factory("duplicates", instances=[i1])
+    project.organization.instance_groups.add(ig_all, ig_dup)
+    actual_num_instances = Instance.objects.active_count()
+    list_response = get(reverse('api:instance_list'), user=system_auditor)
+    api_num_instances_auditor = list_response.data.items()[0][1]
+
+    list_response2 = get(reverse('api:instance_list'), user=org_admin)
+    api_num_instances_oa = list_response2.data.items()[0][1]
+
+    assert actual_num_instances == api_num_instances_auditor
+    # Note: The org_admin will not see the default 'tower' node because it is not in it's group, as expected
+    assert api_num_instances_oa == (actual_num_instances - 1)
+
+
 @pytest.mark.django_db
 def test_basic_instance_group_membership(instance_group_factory, default_instance_group, job_factory):
     j = job_factory()