Last name Kerosi (Kerosi 
) , across the world, is quite a rare cognomen. The cognomen Kerosi is characteristic of Kenya, where it is quite a rare surname, Greece, where it is a rare surname, and the United States, where it is an extremely rare surname. Not in comparison with a country's population, it is commonest in Kenya, Greece, and India. Much less frequently, Kerosi is the forename as well as the last name.