Cognomen Smoylov (Смоилов 
, Smoylov 
, Смойлов 
) , around the world, is a rare surname. The last name Smoylov is characteristic of Uzbekistan, where it is a rare surname, Kazakhstan, and Ukraine, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in Uzbekistan, Russia, and Kazakhstan. Very seldom, Smoylov is the forename as well as the last name.