diff --git a/galaxy_ng/app/access_control/fields.py b/galaxy_ng/app/access_control/fields.py
index d898dccf9c..708978c111 100644
--- a/galaxy_ng/app/access_control/fields.py
+++ b/galaxy_ng/app/access_control/fields.py
@@ -1,4 +1,5 @@
 from django.utils.translation import gettext_lazy as _
+from django.contrib.auth import get_user_model
 
 from rest_framework import serializers
 from rest_framework.exceptions import ValidationError
@@ -10,6 +11,9 @@
 from galaxy_ng.app.models import auth as auth_models
 
 
+User = get_user_model()
+
+
 class GroupPermissionField(serializers.Field):
     def _validate_group(self, group_data):
         if 'object_roles' not in group_data:
@@ -71,6 +75,52 @@ def to_internal_value(self, data):
             except ValueError:
                 raise ValidationError(detail={'group': _('Invalid group name or ID')})
 
+        print(f'GROUP FIELD INTERNAL FINAL: {internal}')
+        return internal
+
+
+class UserPermissionField(serializers.Field):
+
+    def _validate_user(self, user_data):
+        # FIXME - fill this in ...
+        pass
+
+    def to_representation(self, value):
+        rep = []
+        for user in value:
+            print(f'TO_REP: {value}')
+            rep.append({
+                'id': user.id,
+                'name': user.username,
+                'object_roles': value[user]
+            })
+        return rep
+
+    def to_internal_value(self, data):
+        print(f'UserPermissionField data:{data}')
+
+        if not isinstance(data, list):
+            raise ValidationError(detail={
+                'users': _('Users must be a list of user objects')
+            })
+
+        internal = {}
+        for user_data in data:
+            self._validate_user(user_data)
+            user_filter = {}
+            for field in user_data:
+                if field in ('id', 'username'):
+                    user_filter[field] = user_data[field]
+
+            user = User.objects.filter(**user_filter).first()
+            if not user:
+                raise ValidationError(detail={'user': _('Invalid user username or ID')})
+
+            if 'object_permissions' in user_data:
+                internal[user] = user_data['object_permissions']
+            if 'object_roles' in user_data:
+                internal[user] = user_data['object_roles']
+
         return internal
 
 
diff --git a/galaxy_ng/app/access_control/mixins.py b/galaxy_ng/app/access_control/mixins.py
index 52e37a01e8..26e1a46e9f 100644
--- a/galaxy_ng/app/access_control/mixins.py
+++ b/galaxy_ng/app/access_control/mixins.py
@@ -8,8 +8,12 @@
     assign_role,
     remove_role,
     get_groups_with_perms_attached_roles,
+    # get_users_with_perms_attached_roles,
 )
 
+# FIXME - workaround for https://github.com/pulp/pulpcore/pull/4479
+from galaxy_ng.app.utils.pulp_rbac import get_users_with_perms_attached_roles
+
 from django_lifecycle import hook
 
 
@@ -61,3 +65,56 @@ def _set_groups(self, groups):
     def set_object_groups(self):
         if self._groups:
             self._set_groups(self._groups)
+
+
+class UserModelPermissionsMixin:
+    _users = None
+
+    @property
+    def users(self):
+        return get_users_with_perms_attached_roles(
+            self, include_model_permissions=False, for_concrete_model=True)
+
+    @users.setter
+    def users(self, users):
+        self._set_users(users)
+
+    @transaction.atomic
+    def _set_users(self, users):
+        print(f'SETTING USERS ... {users}')
+        if self._state.adding:
+            self._users = users
+        else:
+            obj = self
+
+            # If the model is a proxy model, get the original model since pulp
+            # doesn't allow us to assign permissions to proxied models.
+            if self._meta.proxy:
+                obj = self._meta.concrete_model.objects.get(pk=self.pk)
+
+            current_users = get_users_with_perms_attached_roles(
+                obj, include_model_permissions=False)
+            for user in current_users:
+                for perm in current_users[user]:
+                    print(f'REMOVE_ROLE perm:{perm} user:{user} obj:{obj}')
+                    remove_role(perm, user, obj)
+
+            for user in users:
+                for role in users[user]:
+                    try:
+                        print(f'ASSIGN ROLE role:{role} user:{user} obj:{obj}')
+                        assign_role(role, user, obj)
+                    except BadRequest:
+                        raise ValidationError(
+                            detail={
+                                'users': _(
+                                    'Role {role} does not exist or does not '
+                                    'have any permissions related to this object.'
+                                ).format(role=role)
+                            }
+                        )
+
+    @hook('after_save')
+    def set_object_users(self):
+        if self._users:
+            self._set_users(self._users)
diff --git a/galaxy_ng/app/api/v3/serializers/namespace.py b/galaxy_ng/app/api/v3/serializers/namespace.py
index 0742d3debc..289cd6c5be 100644
--- a/galaxy_ng/app/api/v3/serializers/namespace.py
+++ b/galaxy_ng/app/api/v3/serializers/namespace.py
@@ -13,7 +13,11 @@
 
 from galaxy_ng.app import models
 from galaxy_ng.app.tasks import dispatch_create_pulp_namespace_metadata
-from galaxy_ng.app.access_control.fields import GroupPermissionField, MyPermissionsField
+from galaxy_ng.app.access_control.fields import (
+    GroupPermissionField,
+    UserPermissionField,
+    MyPermissionsField
+)
 from galaxy_ng.app.api.base import RelatedFieldsBaseSerializer
 
 log = logging.getLogger(__name__)
@@ -73,7 +77,8 @@ def validate_url(self, url):
 
 class NamespaceSerializer(serializers.ModelSerializer):
     links = NamespaceLinkSerializer(many=True, required=False)
-    groups = GroupPermissionField()
+    groups = GroupPermissionField(required=False)
+    users = UserPermissionField(required=False)
     related_fields = NamespaceRelatedFieldSerializer(source="*")
     avatar_url = fields.URLField(required=False, allow_blank=True)
     avatar_sha256 = serializers.SerializerMethodField()
@@ -93,6 +98,7 @@ class Meta:
             'description',
             'links',
             'groups',
+            'users',
             'resources',
             'related_fields',
             'metadata_sha256',
@@ -101,6 +107,7 @@ class Meta:
 
     # replace with a NamespaceNameSerializer and validate_name() ?
     def validate_name(self, name):
+        print(f'NamespaceSerializer.validate_name({name})')
         if not name:
             raise ValidationError(detail={
                 'name': _("Attribute 'name' is required")})
@@ -122,9 +129,13 @@ def get_avatar_sha256(self, obj):
 
     @transaction.atomic
     def create(self, validated_data):
+
+        print(f'NamespaceSerializer.create({validated_data})')
+
         links_data = validated_data.pop('links', [])
 
         instance = models.Namespace.objects.create(**validated_data)
+        print(f'NamespaceSerializer instance:{instance}')
 
         # create NamespaceLink objects if needed
         new_links = []
@@ -178,6 +189,7 @@ class Meta:
             'avatar_url',
             'description',
             'groups',
+            'users',
             'related_fields',
             'metadata_sha256',
             'avatar_sha256'
diff --git a/galaxy_ng/app/api/v3/viewsets/namespace.py b/galaxy_ng/app/api/v3/viewsets/namespace.py
index 5a9c559729..40c6e721f7 100644
--- a/galaxy_ng/app/api/v3/viewsets/namespace.py
+++ b/galaxy_ng/app/api/v3/viewsets/namespace.py
@@ -65,6 +65,7 @@ def create(self, request: Request, *args, **kwargs) -> Response:
             raise ConflictError(
                 detail={'name': _('A namespace named %s already exists.') % name}
             )
+        print(f'NAMESPACEVIEWSET.CREATE -> ARGS:{args} KWARGS:{kwargs} REQUEST.DATA:{request.data}')
         return super().create(request, *args, **kwargs)
 
     @transaction.atomic
diff --git a/galaxy_ng/app/models/namespace.py b/galaxy_ng/app/models/namespace.py
index 2b7dbdcd38..b724d0d347 100644
--- a/galaxy_ng/app/models/namespace.py
+++ b/galaxy_ng/app/models/namespace.py
@@ -16,7 +16,11 @@
 __all__ = ("Namespace", "NamespaceLink")
 
 
-class Namespace(LifecycleModel, mixins.GroupModelPermissionsMixin):
+class Namespace(
+    LifecycleModel,
+    mixins.GroupModelPermissionsMixin,
+    mixins.UserModelPermissionsMixin
+):
     """
     A model representing Ansible content namespace.
 
diff --git a/galaxy_ng/app/utils/pulp_rbac.py b/galaxy_ng/app/utils/pulp_rbac.py
new file mode 100644
index 0000000000..0349d1675c
--- /dev/null
+++ b/galaxy_ng/app/utils/pulp_rbac.py
@@ -0,0 +1,45 @@
+from collections import defaultdict
+
+from django.db.models import Q
+from django.contrib.auth.models import Permission
+from django.contrib.contenttypes.models import ContentType
+
+from pulpcore.plugin.models.role import GroupRole
+from pulpcore.plugin.models.role import UserRole
+
+
+def get_users_with_perms_attached_roles(
+    obj,
+    with_group_users=True,
+    only_with_perms_in=None,
+    include_domain_permissions=True,
+    include_model_permissions=True,
+    for_concrete_model=False,
+):
+    # DELETE ONCE https://github.com/pulp/pulpcore/pull/4479 IS RELEASED AND BUMPED IN GALAXY_NG
+    ctype = ContentType.objects.get_for_model(obj, for_concrete_model=for_concrete_model)
+    perms = Permission.objects.filter(content_type__pk=ctype.id)
+    if only_with_perms_in:
+        codenames = [
+            split_perm[-1]
+            for split_perm in (perm.split(".", maxsplit=1) for perm in only_with_perms_in)
+            if len(split_perm) == 1 or split_perm[0] == ctype.app_label
+        ]
+        perms = perms.filter(codename__in=codenames)
+
+    object_query = Q(content_type=ctype, object_id=obj.pk)
+    if include_domain_permissions and getattr(obj, "pulp_domain", None):
+        object_query = Q(domain=obj.pulp_domain_id) | object_query
+    if include_model_permissions:
+        object_query = Q(object_id=None) | object_query
+
+    user_roles = UserRole.objects.filter(role__permissions__in=perms).filter(object_query)
+    res = defaultdict(set)
+    for user_role in user_roles:
+        res[user_role.user].add(user_role.role.name)
+    if with_group_users:
+        group_roles = GroupRole.objects.filter(role__permissions__in=perms).filter(object_query)
+        for group_role in group_roles:
+            for user in group_role.group.user_set.all():
+                res[user].add(group_role.role.name)
+    return {k: list(v) for k, v in res.items()}
diff --git a/galaxy_ng/tests/integration/api/test_namespace_management.py b/galaxy_ng/tests/integration/api/test_namespace_management.py
index 7405af12ec..393c1a962c 100644
--- a/galaxy_ng/tests/integration/api/test_namespace_management.py
+++ b/galaxy_ng/tests/integration/api/test_namespace_management.py
@@ -56,3 +56,109 @@ def test_namespace_create_and_delete(ansible_config, api_version):
     existing3 = get_all_namespaces(api_client=api_client, api_version=api_version)
     existing3 = dict((x['name'], x) for x in existing3)
     assert new_namespace not in existing3
+
+
+@pytest.mark.galaxyapi_smoke
+@pytest.mark.namespace
+@pytest.mark.all
+@pytest.mark.parametrize(
+    "user_property",
+    [
+        'id',
+        'username'
+    ]
+)
+def test_namespace_create_with_user(ansible_config, user_property):
+    config = ansible_config("partner_engineer")
+    api_client = get_client(config, request_token=True, require_auth=True)
+    api_prefix = config.get("api_prefix").rstrip("/")
+
+    # find this client's user info...
+    me = api_client(f'{api_prefix}/_ui/v1/me/')
+    username = me['username']
+
+    new_namespace = generate_unused_namespace(api_client=api_client)
+
+    # make a namespace with a user and without defining groups ...
+    object_roles = [
+        'galaxy.collection_namespace_owner',
+        'galaxy.collection_publisher'
+    ]
+    payload = {
+        'name': new_namespace,
+        'users': [
+            {
+                user_property: me.get(user_property),
+                'object_roles': object_roles,
+            }
+        ]
+    }
+    resp = api_client(f'{api_prefix}/_ui/v1/my-namespaces/', args=payload, method='POST')
+
+    # should have the right results ...
+    assert resp['name'] == new_namespace
+    assert resp['groups'] == []
+    assert resp['users'] != []
+    assert username in [x['name'] for x in resp['users']]
+    assert username in [x['name'] for x in resp['users']]
+    assert resp['users'][0]['object_roles'] == object_roles
+
+
+@pytest.mark.galaxyapi_smoke
+@pytest.mark.namespace
+@pytest.mark.all
+@pytest.mark.parametrize(
+    "user_property",
+    [
+        'id',
+        'username'
+    ]
+)
+def test_namespace_edit_with_user(ansible_config, user_property):
+    config = ansible_config("partner_engineer")
+    api_client = get_client(config, request_token=True, require_auth=True)
+    api_prefix = config.get("api_prefix").rstrip("/")
+
+    # find this client's user info...
+    me = api_client(f'{api_prefix}/_ui/v1/me/')
+    username = me['username']
+
+    new_namespace = generate_unused_namespace(api_client=api_client)
+
+    # make a namespace without users and without groups ...
+    payload = {
+        'name': new_namespace,
+    }
+    resp = api_client(f'{api_prefix}/_ui/v1/my-namespaces/', args=payload, method='POST')
+
+    # should have the right results ...
+    assert resp['name'] == new_namespace
+    assert resp['groups'] == []
+    assert resp['users'] == []
+
+    # now edit the namespace to add the user
+    object_roles = [
+        'galaxy.collection_namespace_owner',
+        'galaxy.collection_publisher'
+    ]
+    payload = {
+        'name': new_namespace,
+        'users': [
+            {
+                user_property: me.get(user_property),
+                'object_roles': object_roles,
+            }
+        ]
+    }
+    resp = api_client(
+        f'{api_prefix}/_ui/v1/my-namespaces/{new_namespace}/',
+        args=payload,
+        method='PUT'
+    )
+
+    # should have the right results ...
+    assert resp['name'] == new_namespace
+    assert resp['groups'] == []
+    assert resp['users'] != []
+    assert username in [x['name'] for x in resp['users']]
+    assert resp['users'][0]['object_roles'] == object_roles