Family name Kisis (Kisis 
, Кисис 
) , across the world, is a rare last name. The cognomen Kisis is habitual in Latvia, where it is quite a common surname, Lithuania, where it is a rare surname, and Venezuela, where it is a very rare surname. Measured by absolute frequency, this name is the most popular in Latvia, Russia, and Venezuela. Very seldom, Kisis is the forename as well as the last name.