diff --git a/app/main/views/organisations.py b/app/main/views/organisations.py
index 5e6aef6bb..ac88afe37 100644
--- a/app/main/views/organisations.py
+++ b/app/main/views/organisations.py
@@ -329,6 +329,10 @@ def edit_organisation_name(org_id):
         form.name.data = current_organisation.name
 
     if form.validate_on_submit():
+
+        if form.name.data == current_organisation.name:
+            return redirect(url_for('.organisation_settings', org_id=current_organisation.id))
+
         unique_name = organisations_client.is_organisation_name_unique(org_id, form.name.data)
         if not unique_name:
             form.name.errors.append("This organisation name is already in use")
diff --git a/tests/app/main/views/organisations/test_organisations.py b/tests/app/main/views/organisations/test_organisations.py
index 63c80c84f..fd3ee85c8 100644
--- a/tests/app/main/views/organisations/test_organisations.py
+++ b/tests/app/main/views/organisations/test_organisations.py
@@ -1315,6 +1315,25 @@ def test_confirm_update_organisation_with_incorrect_password(
     ) == 'Error: Invalid password'
 
 
+def test_confirm_update_organisation_with_existing_name(
+    client_request,
+    platform_admin_user,
+    fake_uuid,
+    mock_get_organisation,
+):
+    client_request.login(platform_admin_user)
+    client_request.post(
+        '.edit_organisation_name',
+        org_id=fake_uuid,
+        _data={'name': 'Test organisation'},
+        _expected_redirect=url_for(
+            '.organisation_settings',
+            org_id=fake_uuid,
+            _external=True,
+        )
+    )
+
+
 def test_confirm_update_organisation_with_name_already_in_use(
     client_request,
     platform_admin_user,