Cognomen ยอ (Yo 
, Yos , Giò 
) , all over the world, is a common last name. The surname ยอ is habitual in Macao, where it is quite a common surname, Myanmar, and Guatemala (explore the name in all countries). In absolute terms, it is commonest in Myanmar, Indonesia, and Egypt. Also, ยอ is the forename as well as the last name.