Cognomen Yadkar (يادكار 
, Ядкар 
, Yadkar 
) , all over the world, is a rare family name. The family name Yadkar is characteristic of Bahrain, where it is quite a rare surname, Iraq, where it is a rare surname, and Iran, where it is a very rare surname. More prevalently, Yadkar is the forename as well as the last name.