Last name Didash (Didash 
, Дидаш 
) , worldwide, is a very rare cognomen. The family name Didash is habitual in Israel, where it is a very rare surname, Russia, and Ukraine, where it is an extremely rare surname. In absolute terms, it is the most numerous in Russia, Israel, and the United States. Very seldom, Didash is the forename as well as the last name.