Last name リコウ (Ricou 
, リコウ 
) , in the world, is quite a rare surname. The family name リコウ is characteristic of Jersey, where it is quite a common surname, France, where it is quite a rare surname, and Portugal. Not in comparison with a country's population, it most frequently occurs in France, Japan, and Portugal. Very seldom, リコウ is the forename as well as the last name.