Family name Wahan (Вахан 
, Ваан 
, Wahan 
) , in the world, is quite a common cognomen. The last name Wahan is characteristic of Armenia, where it is a common surname, Malaysia, where it is quite a rare surname, and Bulgaria, where it is a rare surname. In absolute terms, it is commonest in Armenia, Malaysia, and India. Much less frequently, Wahan is the forename as well as the last name.