Last name Abdullay (Вад 
, Abdullay 
) , throughout the world, is a very rare surname. The last name Abdullay is characteristic of Saudi Arabia, where it is a very rare surname, Malaysia, and Russia, where it is an extremely rare surname. Measured by absolute frequency, it is the most numerous in Saudi Arabia, Malaysia, and Nigeria. Likewise, Abdullay is the forename as well as the last name.