Cognomen Tatna (Татьна 
, Tatna 
) , across the world, is a very rare surname. The surname Tatna is habitual in Indonesia, where it is a very rare surname, Russia, and Spain, where it is an extremely rare surname. Measured by absolute frequency, it most frequently occurs in Indonesia, Russia, and India. Much more prevalently, Tatna is the forename as well as the last name.