Cognomen Tatarly (Tatarly 
, Татарлы 
) , across the world, is a very rare family name. The surname Tatarly is characteristic of Estonia, where it is a rare surname, Russia, where it is a very rare surname, and Ukraine, where it is an extremely rare surname. Measured by absolute frequency, the name is most common in Russia, Estonia, and the United States. Much less frequently, Tatarly is the forename as well as the last name.