Last name קירילו (Cirillo 
, קירילו 
) , all around the world, is a common family name. The cognomen קירילו is characteristic of Italy, where it is quite a common surname, Uruguay, where it is quite a rare surname, and Argentina. Not in comparison with a country's population, this name is the most popular in Italy, the United States, and Brazil. Much less frequently, קירילו is the forename as well as the last name.