Nicolaus Olahus (Latin for Nicholas, the Vlach; Hungarian: Oláh Miklós; Romanian: Nicolae Valahul); January 10, 1493, Sibiu/Hermannstadt - January 15, 1568, Trnava/Nagyszombat) is the Archbishop of Esztergom, Primate of Hungary, and a distinguished Roman Catholic prelate, of Romanian descent.