Surname ธุมา (Thuma 
, ธุมา 
) , in all the world, is quite a rare cognomen. The cognomen ธุมา is characteristic of Botswana, where it is quite a rare surname, Austria, and Hungary, where it is a rare surname. In absolute terms, it most frequently occurs in the United States, Thailand, and Germany. Likewise, ธุมา is the forename as well as the last name.