Family name Tohtar (Тохтар 
, Tohtar ) , around the world, is a rare cognomen. The family name Tohtar is characteristic of Armenia, where it is a rare surname, Ukraine, and Kyrgyzstan, where it is a very rare surname. Measured by absolute frequency, it is commonest in Ukraine, Kazakhstan, and Armenia. More prevalently, Tohtar is the forename as well as the last name.