Last name ロウコ (Rouco 
, ロウコ 
) , around the world, is quite a rare surname. The last name ロウコ is characteristic of Latin America and the Caribbean, particularly Uruguay, where it is quite a rare surname, Cuba, and Argentina. Not in comparison with a country's population, this name is the most popular in Argentina, Spain, and Cuba. Much less frequently, ロウコ is the forename as well as the last name.