Last name Кумер (Kumer 
, Кумер 
, Kummers 
) , across the world, is a common family name. The surname Кумер is habitual in Slovenia, where it is quite a common surname, Oman, where it is quite a rare surname, and Bangladesh. Not in comparison with a country's population, this name is the most popular in Bangladesh, India, and Saudi Arabia. Very seldom, Кумер is the forename as well as the last name.