diff --git a/django/contrib/flatpages/tests/csrf.py b/django/contrib/flatpages/tests/csrf.py
index e64c4bb102..59996d9824 100644
--- a/django/contrib/flatpages/tests/csrf.py
+++ b/django/contrib/flatpages/tests/csrf.py
@@ -1,6 +1,7 @@
 import os
 from django.conf import settings
 from django.contrib.auth.models import User
+from django.contrib.auth.tests.utils import skipIfCustomUser
 from django.test import TestCase, Client
 from django.test.utils import override_settings
 
@@ -38,6 +39,7 @@ class FlatpageCSRFTests(TestCase):
         response = self.client.get('/flatpage_root/no_such_flatpage/')
         self.assertEqual(response.status_code, 404)
 
+    @skipIfCustomUser
     def test_view_authenticated_flatpage(self):
         "A flatpage served through a view can require authentication"
         response = self.client.get('/flatpage_root/sekrit/')
diff --git a/django/contrib/flatpages/tests/middleware.py b/django/contrib/flatpages/tests/middleware.py
index 4afa4ff982..1ad8fa93b3 100644
--- a/django/contrib/flatpages/tests/middleware.py
+++ b/django/contrib/flatpages/tests/middleware.py
@@ -1,6 +1,7 @@
 import os
 from django.conf import settings
 from django.contrib.auth.models import User
+from django.contrib.auth.tests.utils import skipIfCustomUser
 from django.contrib.flatpages.models import FlatPage
 from django.test import TestCase
 from django.test.utils import override_settings
@@ -36,6 +37,7 @@ class FlatpageMiddlewareTests(TestCase):
         response = self.client.get('/flatpage_root/no_such_flatpage/')
         self.assertEqual(response.status_code, 404)
 
+    @skipIfCustomUser
     def test_view_authenticated_flatpage(self):
         "A flatpage served through a view can require authentication"
         response = self.client.get('/flatpage_root/sekrit/')
@@ -57,6 +59,7 @@ class FlatpageMiddlewareTests(TestCase):
         response = self.client.get('/no_such_flatpage/')
         self.assertEqual(response.status_code, 404)
 
+    @skipIfCustomUser
     def test_fallback_authenticated_flatpage(self):
         "A flatpage served by the middleware can require authentication"
         response = self.client.get('/sekrit/')
diff --git a/django/contrib/flatpages/tests/templatetags.py b/django/contrib/flatpages/tests/templatetags.py
index aebc62277e..1a6f3c2975 100644
--- a/django/contrib/flatpages/tests/templatetags.py
+++ b/django/contrib/flatpages/tests/templatetags.py
@@ -1,6 +1,7 @@
 import os
 from django.conf import settings
 from django.contrib.auth.models import AnonymousUser, User
+from django.contrib.auth.tests.utils import skipIfCustomUser
 from django.template import Template, Context, TemplateSyntaxError
 from django.test import TestCase
 from django.test.utils import override_settings
@@ -24,9 +25,6 @@ class FlatpageTemplateTagTests(TestCase):
     fixtures = ['sample_flatpages']
     urls = 'django.contrib.flatpages.tests.urls'
 
-    def setUp(self):
-        self.me = User.objects.create_user('testuser', 'test@example.com', 's3krit')
-
     def test_get_flatpages_tag(self):
         "The flatpage template tag retrives unregistered prefixed flatpages by default"
         out = Template(
@@ -51,8 +49,10 @@ class FlatpageTemplateTagTests(TestCase):
             }))
         self.assertEqual(out, "A Flatpage,A Nested Flatpage,")
 
+    @skipIfCustomUser
     def test_get_flatpages_tag_for_user(self):
         "The flatpage template tag retrives all flatpages for an authenticated user"
+        me = User.objects.create_user('testuser', 'test@example.com', 's3krit')
         out = Template(
                 "{% load flatpages %}"
                 "{% get_flatpages for me as flatpages %}"
@@ -60,7 +60,7 @@ class FlatpageTemplateTagTests(TestCase):
                 "{{ page.title }},"
                 "{% endfor %}"
             ).render(Context({
-                'me': self.me
+                'me': me
             }))
         self.assertEqual(out, "A Flatpage,A Nested Flatpage,Sekrit Nested Flatpage,Sekrit Flatpage,")
 
@@ -88,8 +88,10 @@ class FlatpageTemplateTagTests(TestCase):
             }))
         self.assertEqual(out, "A Nested Flatpage,")
 
+    @skipIfCustomUser
     def test_get_flatpages_with_prefix_for_user(self):
         "The flatpage template tag retrive prefixed flatpages for an authenticated user"
+        me = User.objects.create_user('testuser', 'test@example.com', 's3krit')
         out = Template(
                 "{% load flatpages %}"
                 "{% get_flatpages '/location/' for me as location_flatpages %}"
@@ -97,7 +99,7 @@ class FlatpageTemplateTagTests(TestCase):
                 "{{ page.title }},"
                 "{% endfor %}"
             ).render(Context({
-                'me': self.me
+                'me': me
             }))
         self.assertEqual(out, "A Nested Flatpage,Sekrit Nested Flatpage,")
 
diff --git a/django/contrib/flatpages/tests/views.py b/django/contrib/flatpages/tests/views.py
index b69bd6abb4..0448b21227 100644
--- a/django/contrib/flatpages/tests/views.py
+++ b/django/contrib/flatpages/tests/views.py
@@ -1,6 +1,7 @@
 import os
 from django.conf import settings
 from django.contrib.auth.models import User
+from django.contrib.auth.tests.utils import skipIfCustomUser
 from django.contrib.flatpages.models import FlatPage
 from django.test import TestCase
 from django.test.utils import override_settings
@@ -36,6 +37,7 @@ class FlatpageViewTests(TestCase):
         response = self.client.get('/flatpage_root/no_such_flatpage/')
         self.assertEqual(response.status_code, 404)
 
+    @skipIfCustomUser
     def test_view_authenticated_flatpage(self):
         "A flatpage served through a view can require authentication"
         response = self.client.get('/flatpage_root/sekrit/')
diff --git a/django/contrib/formtools/tests/wizard/cookiestorage.py b/django/contrib/formtools/tests/wizard/cookiestorage.py
index 3f26b85f7d..060e8260b5 100644
--- a/django/contrib/formtools/tests/wizard/cookiestorage.py
+++ b/django/contrib/formtools/tests/wizard/cookiestorage.py
@@ -5,10 +5,12 @@ from django.core import signing
 from django.core.exceptions import SuspiciousOperation
 from django.http import HttpResponse
 
+from django.contrib.auth.tests.utils import skipIfCustomUser
 from django.contrib.formtools.wizard.storage.cookie import CookieStorage
 from django.contrib.formtools.tests.wizard.storage import get_request, TestStorage
 
 
+@skipIfCustomUser
 class TestCookieStorage(TestStorage, TestCase):
     def get_storage(self):
         return CookieStorage
diff --git a/django/contrib/formtools/tests/wizard/forms.py b/django/contrib/formtools/tests/wizard/forms.py
index 51cfaa661b..f6e177e5a4 100644
--- a/django/contrib/formtools/tests/wizard/forms.py
+++ b/django/contrib/formtools/tests/wizard/forms.py
@@ -2,6 +2,7 @@ from __future__ import unicode_literals
 
 from django import forms, http
 from django.conf import settings
+from django.db import models
 from django.test import TestCase
 from django.template.response import TemplateResponse
 from django.utils.importlib import import_module
@@ -29,26 +30,40 @@ def get_request(*args, **kwargs):
     request.session = engine.SessionStore(None)
     return request
 
+
 class Step1(forms.Form):
     name = forms.CharField()
 
+
 class Step2(forms.Form):
     name = forms.CharField()
 
+
 class Step3(forms.Form):
     data = forms.CharField()
 
+
 class CustomKwargsStep1(Step1):
 
     def __init__(self, test=None, *args, **kwargs):
         self.test = test
         return super(CustomKwargsStep1, self).__init__(*args, **kwargs)
 
-class UserForm(forms.ModelForm):
-    class Meta:
-        model = User
 
-UserFormSet = forms.models.modelformset_factory(User, form=UserForm, extra=2)
+class TestModel(models.Model):
+    name = models.CharField(max_length=100)
+
+    class Meta:
+        app_label = 'formtools'
+
+
+class TestModelForm(forms.ModelForm):
+    class Meta:
+        model = TestModel
+
+
+TestModelFormSet = forms.models.modelformset_factory(TestModel, form=TestModelForm, extra=2)
+
 
 class TestWizard(WizardView):
     storage_name = 'django.contrib.formtools.wizard.storage.session.SessionStorage'
@@ -149,8 +164,8 @@ class FormTests(TestCase):
 
     def test_form_instance(self):
         request = get_request()
-        the_instance = User()
-        testform = TestWizard.as_view([('start', UserForm), ('step2', Step2)],
+        the_instance = TestModel()
+        testform = TestWizard.as_view([('start', TestModelForm), ('step2', Step2)],
             instance_dict={'start': the_instance})
         response, instance = testform(request)
 
@@ -163,12 +178,12 @@ class FormTests(TestCase):
 
     def test_formset_instance(self):
         request = get_request()
-        the_instance1, created = User.objects.get_or_create(
-            username='testuser1')
-        the_instance2, created = User.objects.get_or_create(
-            username='testuser2')
-        testform = TestWizard.as_view([('start', UserFormSet), ('step2', Step2)],
-            instance_dict={'start': User.objects.filter(username='testuser1')})
+        the_instance1, created = TestModel.objects.get_or_create(
+            name='test object 1')
+        the_instance2, created = TestModel.objects.get_or_create(
+            name='test object 2')
+        testform = TestWizard.as_view([('start', TestModelFormSet), ('step2', Step2)],
+            instance_dict={'start': TestModel.objects.filter(name='test object 1')})
         response, instance = testform(request)
 
         self.assertEqual(list(instance.get_form_instance('start')), [the_instance1])
diff --git a/django/contrib/formtools/tests/wizard/namedwizardtests/tests.py b/django/contrib/formtools/tests/wizard/namedwizardtests/tests.py
index 214f19a04d..824eb7e37e 100644
--- a/django/contrib/formtools/tests/wizard/namedwizardtests/tests.py
+++ b/django/contrib/formtools/tests/wizard/namedwizardtests/tests.py
@@ -5,6 +5,7 @@ from django.http import QueryDict
 from django.test import TestCase
 
 from django.contrib.auth.models import User
+from django.contrib.auth.tests.utils import skipIfCustomUser
 
 from django.contrib.formtools.wizard.views import (NamedUrlSessionWizardView,
                                                    NamedUrlCookieWizardView)
@@ -276,6 +277,7 @@ class NamedWizardTests(object):
         self.assertEqual(response.context['wizard']['steps'].current, 'form1')
 
 
+@skipIfCustomUser
 class NamedSessionWizardTests(NamedWizardTests, TestCase):
     wizard_urlname = 'nwiz_session'
     wizard_step_1_data = {
@@ -307,6 +309,7 @@ class NamedSessionWizardTests(NamedWizardTests, TestCase):
     )
 
 
+@skipIfCustomUser
 class NamedCookieWizardTests(NamedWizardTests, TestCase):
     wizard_urlname = 'nwiz_cookie'
     wizard_step_1_data = {
@@ -367,11 +370,13 @@ class TestNamedUrlCookieWizardView(NamedUrlCookieWizardView):
         return response, self
 
 
+@skipIfCustomUser
 class NamedSessionFormTests(NamedFormTests, TestCase):
     formwizard_class = TestNamedUrlSessionWizardView
     wizard_urlname = 'nwiz_session'
 
 
+@skipIfCustomUser
 class NamedCookieFormTests(NamedFormTests, TestCase):
     formwizard_class = TestNamedUrlCookieWizardView
     wizard_urlname = 'nwiz_cookie'
diff --git a/django/contrib/formtools/tests/wizard/sessionstorage.py b/django/contrib/formtools/tests/wizard/sessionstorage.py
index 85410725c9..0bd9fd8ecd 100644
--- a/django/contrib/formtools/tests/wizard/sessionstorage.py
+++ b/django/contrib/formtools/tests/wizard/sessionstorage.py
@@ -1,9 +1,11 @@
 from django.test import TestCase
 
+from django.contrib.auth.tests.utils import skipIfCustomUser
 from django.contrib.formtools.tests.wizard.storage import TestStorage
 from django.contrib.formtools.wizard.storage.session import SessionStorage
 
 
+@skipIfCustomUser
 class TestSessionStorage(TestStorage, TestCase):
     def get_storage(self):
         return SessionStorage
diff --git a/django/contrib/formtools/tests/wizard/wizardtests/tests.py b/django/contrib/formtools/tests/wizard/wizardtests/tests.py
index 4aaea7d56e..1ee5dbdc78 100644
--- a/django/contrib/formtools/tests/wizard/wizardtests/tests.py
+++ b/django/contrib/formtools/tests/wizard/wizardtests/tests.py
@@ -7,11 +7,19 @@ from django.test import TestCase
 from django.test.client import RequestFactory
 from django.conf import settings
 from django.contrib.auth.models import User
+from django.contrib.auth.tests.utils import skipIfCustomUser
 from django.contrib.formtools.wizard.views import CookieWizardView
-from django.contrib.formtools.tests.wizard.forms import UserForm, UserFormSet
 from django.utils._os import upath
 
 
+class UserForm(forms.ModelForm):
+    class Meta:
+        model = User
+
+
+UserFormSet = forms.models.modelformset_factory(User, form=UserForm, extra=2)
+
+
 class WizardTests(object):
     urls = 'django.contrib.formtools.tests.wizard.wizardtests.urls'
 
@@ -75,7 +83,7 @@ class WizardTests(object):
 
         # ticket #19025: `form` should be included in context
         form = response.context_data['wizard']['form']
-        self.assertEqual(response.context_data['form'], form)            
+        self.assertEqual(response.context_data['form'], form)
 
     def test_form_finish(self):
         response = self.client.get(self.wizard_url)
@@ -196,6 +204,7 @@ class WizardTests(object):
         self.assertEqual(response.status_code, 200)
 
 
+@skipIfCustomUser
 class SessionWizardTests(WizardTests, TestCase):
     wizard_url = '/wiz_session/'
     wizard_step_1_data = {
@@ -226,6 +235,8 @@ class SessionWizardTests(WizardTests, TestCase):
         }
     )
 
+
+@skipIfCustomUser
 class CookieWizardTests(WizardTests, TestCase):
     wizard_url = '/wiz_cookie/'
     wizard_step_1_data = {
@@ -256,6 +267,8 @@ class CookieWizardTests(WizardTests, TestCase):
         }
     )
 
+
+@skipIfCustomUser
 class WizardTestKwargs(TestCase):
     wizard_url = '/wiz_other_template/'
     wizard_step_1_data = {
@@ -347,6 +360,7 @@ class WizardTestGenericViewInterface(TestCase):
         self.assertEqual(response.context_data['another_key'], 'another_value')
 
 
+@skipIfCustomUser
 class WizardFormKwargsOverrideTests(TestCase):
     def setUp(self):
         super(WizardFormKwargsOverrideTests, self).setUp()
diff --git a/django/contrib/sitemaps/tests/base.py b/django/contrib/sitemaps/tests/base.py
index bbe8229aae..099dba7256 100644
--- a/django/contrib/sitemaps/tests/base.py
+++ b/django/contrib/sitemaps/tests/base.py
@@ -1,9 +1,24 @@
 from django.contrib.auth.models import User
 from django.contrib.sites.models import Site
 from django.core.cache import cache
+from django.db import models
 from django.test import TestCase
 
 
+class TestModel(models.Model):
+    "A test model for "
+    name = models.CharField(max_length=100)
+
+    class Meta:
+        app_label = 'sitemaps'
+
+    def __unicode__(self):
+        return self.name
+
+    def get_absolute_url(self):
+        return '/testmodel/%s/' % self.id
+
+
 class SitemapTestsBase(TestCase):
     protocol = 'http'
     domain = 'example.com' if Site._meta.installed else 'testserver'
@@ -13,8 +28,8 @@ class SitemapTestsBase(TestCase):
         self.base_url = '%s://%s' % (self.protocol, self.domain)
         self.old_Site_meta_installed = Site._meta.installed
         cache.clear()
-        # Create a user that will double as sitemap content
-        User.objects.create_user('testuser', 'test@example.com', 's3krit')
+        # Create an object for sitemap content.
+        TestModel.objects.create(name='Test Object')
 
     def tearDown(self):
         Site._meta.installed = self.old_Site_meta_installed
diff --git a/django/contrib/sitemaps/tests/generic.py b/django/contrib/sitemaps/tests/generic.py
index ae054c95c2..5b265736b3 100644
--- a/django/contrib/sitemaps/tests/generic.py
+++ b/django/contrib/sitemaps/tests/generic.py
@@ -1,9 +1,9 @@
 from __future__ import unicode_literals
 
-from django.contrib.auth.models import User
 from django.test.utils import override_settings
 
-from .base import SitemapTestsBase
+from .base import TestModel, SitemapTestsBase
+
 
 @override_settings(ABSOLUTE_URL_OVERRIDES={})
 class GenericViewsSitemapTests(SitemapTestsBase):
@@ -12,8 +12,8 @@ class GenericViewsSitemapTests(SitemapTestsBase):
         "A minimal generic sitemap can be rendered"
         response = self.client.get('/generic/sitemap.xml')
         expected = ''
-        for username in User.objects.values_list("username", flat=True):
-            expected += "<url><loc>%s/users/%s/</loc></url>" % (self.base_url, username)
+        for pk in TestModel.objects.values_list("id", flat=True):
+            expected += "<url><loc>%s/testmodel/%s/</loc></url>" % (self.base_url, pk)
         expected_content = """<?xml version="1.0" encoding="UTF-8"?>
 <urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
 %s
diff --git a/django/contrib/sitemaps/tests/http.py b/django/contrib/sitemaps/tests/http.py
index 4a1cf66b17..1a91d970f3 100644
--- a/django/contrib/sitemaps/tests/http.py
+++ b/django/contrib/sitemaps/tests/http.py
@@ -4,7 +4,6 @@ import os
 from datetime import date
 
 from django.conf import settings
-from django.contrib.auth.models import User
 from django.contrib.sitemaps import Sitemap, GenericSitemap
 from django.contrib.sites.models import Site
 from django.core.exceptions import ImproperlyConfigured
@@ -14,7 +13,7 @@ from django.utils.formats import localize
 from django.utils._os import upath
 from django.utils.translation import activate, deactivate
 
-from .base import SitemapTestsBase
+from .base import TestModel, SitemapTestsBase
 
 
 class HTTPSitemapTests(SitemapTestsBase):
@@ -128,10 +127,10 @@ class HTTPSitemapTests(SitemapTestsBase):
         Check to make sure that the raw item is included with each
         Sitemap.get_url() url result.
         """
-        user_sitemap = GenericSitemap({'queryset': User.objects.all()})
-        def is_user(url):
-            return isinstance(url['item'], User)
-        item_in_url_info = all(map(is_user, user_sitemap.get_urls()))
+        test_sitemap = GenericSitemap({'queryset': TestModel.objects.all()})
+        def is_testmodel(url):
+            return isinstance(url['item'], TestModel)
+        item_in_url_info = all(map(is_testmodel, test_sitemap.get_urls()))
         self.assertTrue(item_in_url_info)
 
     def test_cached_sitemap_index(self):
diff --git a/django/contrib/sitemaps/tests/urls/http.py b/django/contrib/sitemaps/tests/urls/http.py
index 018e46a482..56103f4ec2 100644
--- a/django/contrib/sitemaps/tests/urls/http.py
+++ b/django/contrib/sitemaps/tests/urls/http.py
@@ -4,6 +4,9 @@ from django.contrib.sitemaps import Sitemap, GenericSitemap, FlatPageSitemap, vi
 from django.contrib.auth.models import User
 from django.views.decorators.cache import cache_page
 
+from django.contrib.sitemaps.tests.base import TestModel
+
+
 class SimpleSitemap(Sitemap):
     changefreq = "never"
     priority = 0.5
@@ -18,7 +21,7 @@ simple_sitemaps = {
 }
 
 generic_sitemaps = {
-    'generic': GenericSitemap({'queryset': User.objects.all()}),
+    'generic': GenericSitemap({'queryset': TestModel.objects.all()}),
 }
 
 flatpage_sitemaps = {