Family name Лака (Laka 
, Лака 
) , in the world, is a common cognomen. The last name Лака is characteristic of Papua New Guinea, where it is quite a common surname, South Africa, where it is quite a rare surname, and the Democratic Republic of the Congo. Not in comparison with a country's population, it is commonest in India, the Democratic Republic of the Congo, and South Africa. Also, Лака is the forename as well as the last name.