Last name Yayou (Yayou 
, 亚友 
) , in the world, is a rare surname. The family name Yayou is habitual in Algeria, where it is a rare surname, Tunisia, and Ethiopia, where it is a very rare surname. Measured by absolute frequency, the name is most common in Algeria, Ethiopia, and China. More frequently, Yayou is the forename as well as the last name.