Blagaj may refer to: Blagaj, Mostar, a village near Mostar, Bosnia and Herzegovina Blagaj Fort, a medieval fortress near Mostar Blagaj, Donji Vakuf, a village in Bosnia and Herzegovina Blagaj, Kupres, a village in Bosnia and Herzegovina Blagaj Japra, a village near Bosanski Novi, Bosnia and Herzegovina Blagaj Rijeka, a village near Bosanski Novi, Bosnia and Herzegovina Blagaj, Croatia, a village near Slunj, Croatia Blagaj Castle (Croatia), a ruined castle on the Korana, Croatia or of Blagaj, of Blagay, Croatian medieval noble family Rihard Blagaj or Blagay (1786–1858) Slovene aristocrat and botanist