Family name Гульсу (Гульсу 
, Gulsu 
) , around the world, is a very rare last name. The last name Гульсу is habitual in Turkey, where it is a very rare surname, Canada, where it is an extremely rare surname, and the United States. Not in comparison with a country's population, the name is most common in Turkey, Canada, and India. More frequently, Гульсу is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Гульсу | Ukraine, Kazakhstan, Russia |
| Gulsu | Canada, Russia, India, Turkey, United States |