Cognomen Ukk (Ukk 
, Укк 
) , throughout the world, is a rare surname. The cognomen Ukk is habitual in Myanmar, where it is a rare surname, Kazakhstan, where it is a very rare surname, and Indonesia. Not in comparison with a country's population, it is the most numerous in Myanmar, Indonesia, and China. Very seldom, Ukk is the forename as well as the last name.