An Abhainn Mhór

An Abhainn Mhór (meaning 'the big river') is the Irish name for several rivers etc. in Ireland:


 * Avonmore River, flows from the Wicklow Mountains to the Irish Sea at Arklow
 * Munster Blackwater, flows from Kerry through counties Cork and Waterford into the Celtic Sea at Youghal Harbour
 * A former name for Avoca, County Wicklow, a small town
 * Owenmore River (County Mayo), flows from the Nephin Beg Range of mountains into the Atlantic at Tullaghan Bay
 * Owenmore River (Connemara), flows from Ballynahinch Lake to Bertraghboy Bay
 * Owenmore River (County Sligo), a river in County Sligo
 * Owenmore River (County Cavan), a river in County Cavan