Legananny Dolmen is a megalithic dolmen or cromlech nine miles southeast of Banbridge and three miles north of Castlewellan, both in County Down, Northern Ireland. It is on the slopes of Slieve Croob near the village of Leitrim, in Drumgooland parish, nestled between the farmer's stone wall and a back road. It is a State Care Historic Monument sited in the townland of Legananny, in Banbridge District, at grid ref: J2887 4339.