>
Last name Gustin (Gustin , Густин , غستن) , around the world, is a common surname. The surname Gustin is characteristic of Belgium, where it is quite a common surname, Slovenia, where it is quite a rare surname, and Croatia. Not in comparison with a country's population, the name is most common in the United States, Indonesia, and France. Very seldom, Gustin is the forename as well as the last name.