Surname Oyumaa (Oyumaa , Оюмаа ) , across the world, is an extremely rare cognomen. Much more frequently, Oyumaa is the forename as well as the last name.
Оиумаа
Eva, Dalai, Badral, Bilegkhuu, Damdin, Zorigt, Batsukh, Batkhuu, Batbaatar, Batdelger, Kennedy, Jamsran, Davaajav, Sukhbaatar, Buyandelger, and Chuluunkhuu
, Оюмаа 
) , across the world, is an extremely rare cognomen. Much more frequently, Oyumaa is the forename as well as the last name.