The Mardin engagement ceremony massacre was a massacre at an engagement ceremony, where at least forty-four people were killed on May 4, 2009, in the village of Bilge in Mazıdağı district of south-eastern Mardin Province in Turkey. The attack was perpetrated using grenades and automatic weapons by at least two masked assailants, who authorities believe are involved in a feud between two families. According to some sources it was a feud inside the Kurdish Çelebi clan.