Family name Tagan (Tagan 
, تاجان 
, Таган 
) , across the world, is quite a rare surname. The last name Tagan is characteristic of Togo, where it is quite a rare surname, Ukraine, and Belarus, where it is a rare surname. Not in comparison with a country's population, it is the most numerous in Ukraine, Turkey, and Russia. Also, Tagan is the forename as well as the last name.