Surname كرستو (Krsto 
, كرستو 
) , globally, is a rare last name. The cognomen كرستو is characteristic of Southern Europe, particularly North Macedonia, where it is quite a common surname, Slovenia, where it is quite a rare surname, and Croatia, where it is a rare surname. Measured by absolute frequency, it is the most numerous in North Macedonia, Sudan, and Iraq. More frequently, كرستو is the forename as well as the last name.