Cognomen 由亚 (Yuya 
, 由亚) , throughout the world, is quite a rare family name. The cognomen 由亚 is habitual in Myanmar, where it is quite a rare surname, Malaysia, where it is a rare surname, and Nigeria. Measured by absolute frequency, it most frequently occurs in Myanmar, Nigeria, and Ethiopia. More prevalently, 由亚 is the forename as well as the last name.