Deer Abbey was a Cistercian monastery in Buchan, Scotland. It was founded by 1219 AD with the patronage William Comyn, jure uxoris Earl of Buchan, who is also buried there. There was an earlier community of Scottish monks or priests. The notitiae on the margins of the Book of Deer record grants made to the Scottish religious community in the 12th century and a claim that it was founded by Saint Columba and Saint Drostan. The old religious community was probably absorbed by the new foundation. The history of the abbey after the 1210s is obscure until the 1500s, when it was beginning to be secularized. The abbey was turned into a secular lordship for Commendator Robert Keith II (becoming Lord Altrie) in 1587.
There is considerable evidence of prehistory in the local area, most notably in the form of the Catto Long Barrow and numerous tumuli slightly to the south.