Cognomen Хедаят (Hedayat 
, Хедаят 
, Hedajat 
) , throughout the world, is quite a rare surname. The last name Хедаят is characteristic of Afghanistan, where it is quite a rare surname, United Arab Emirates, and Iraq. In absolute terms, it is commonest in Afghanistan, Iran, and Iraq. Also, Хедаят is the forename as well as the last name.