Cognomen 利友 (Liyou 
, 利友 ) , all over the world, is a rare last name. The surname 利友 is characteristic of Algeria, where it is a rare surname, Morocco, and Malaysia, where it is a very rare surname. Measured by absolute frequency, it is commonest in China, Algeria, and Morocco. More frequently, 利友 is the forename as well as the last name.