Last name Wjn (Wjn 
) , in the world, is quite a rare family name. The cognomen Wjn is characteristic of South-eastern Asia, particularly Indonesia, where it is a rare surname, Myanmar, where it is a very rare surname, and Malaysia, where it is an extremely rare surname. Measured by absolute frequency, it is commonest in South-eastern Asia, particularly Indonesia, Myanmar, and Vietnam. Much less frequently, Wjn is the forename as well as the last name.