Cognomen Полулиах (Полулиах 
, Polouliakh 
, Poluliah 
) , around the globe, is a very rare family name. The family name Полулиах is habitual in Georgia, where it is a very rare surname, Russia, and Germany, where it is an extremely rare surname. Not in comparison with a country's population, it is commonest in Russia, the United States, and Germany.