Bective Abbey (Irish: Mainistir Bheigthí ) is a Cistercian abbey on the River Boyne in Bective, County Meath, Ireland. The abbey founded by Murchad O'Maeil-Sheachlainn in 1147 as a 'daughter house' of Mellifont Abbey. Although nothing remains except old ruins and walls, it is in a remarkable state of preservation. Bective Abbey is easy to find thanks to many sign posts along the way and it sets in the middle of a farmer's pasture. In 2012 The O.P.W.