diff --git a/netbox_custom_objects/constants.py b/netbox_custom_objects/constants.py
index ef5bc60..5ae577e 100644
--- a/netbox_custom_objects/constants.py
+++ b/netbox_custom_objects/constants.py
@@ -6,3 +6,19 @@
 )
 
 APP_LABEL = "netbox_custom_objects"
+
+# Field names that are reserved and cannot be used for custom object fields
+RESERVED_FIELD_NAMES = [
+    "bookmarks",
+    "contacts",
+    "created",
+    "custom_field_data",
+    "id",
+    "images",
+    "jobs",
+    "journal_entries",
+    "last_updated",
+    "pk",
+    "subscriptions",
+    "tags",
+]
diff --git a/netbox_custom_objects/models.py b/netbox_custom_objects/models.py
index 9ec2d4c..fa2f160 100644
--- a/netbox_custom_objects/models.py
+++ b/netbox_custom_objects/models.py
@@ -49,7 +49,7 @@
 from utilities.string import title
 from utilities.validators import validate_regex
 
-from netbox_custom_objects.constants import APP_LABEL
+from netbox_custom_objects.constants import APP_LABEL, RESERVED_FIELD_NAMES
 from netbox_custom_objects.field_types import FIELD_TYPE_CLASS
 
 USER_TABLE_DATABASE_NAME_PREFIX = "custom_objects_"
@@ -799,6 +799,16 @@ def related_object_type_label(self):
     def clean(self):
         super().clean()
 
+        # Check if the field name is reserved
+        if self.name in RESERVED_FIELD_NAMES:
+            raise ValidationError(
+                {
+                    "name": _(
+                        'Field name "{name}" is reserved and cannot be used. Reserved names are: {reserved_names}'
+                    ).format(name=self.name, reserved_names=", ".join(RESERVED_FIELD_NAMES))
+                }
+            )
+
         # Validate the field's default value (if any)
         if self.default is not None:
             try: