Surname Kumash (Кумаш 
, Kumash 
) , all over the world, is a rare last name. The last name Kumash is characteristic of Kyrgyzstan, where it is a rare surname, Bulgaria, and Georgia, where it is a very rare surname. Measured by absolute frequency, it is commonest in Kyrgyzstan, Bulgaria, and India. More frequently, Kumash is the forename as well as the last name.