Surname Gaisi (Gaisi 
) , all over the world, is a rare family name. The surname Gaisi is habitual in Saudi Arabia, where it is quite a rare surname, the United States, where it is an extremely rare surname, and South Africa. Not in comparison with a country's population, this name is the most popular in Saudi Arabia, India, and the United States. Also, Gaisi is the forename as well as the last name.