Roskilde Abbey or Our Lady's Abbey, Roskilde (Roskilde Kloster or Vor Frue Kloster), was a nunnery dedicated to Saint Mary the Virgin. The abbey was located at Roskilde on the Danish island of Zealand. It was founded in the early 12th century for Benedictine nuns, but in 1177 became part of the Cistercian reform movement. The abbey was suppressed in 1536 during the Protestant Reformation in Denmark. It is now the site the Old Church of Our Lady, Roskilde (Gammel Vor Frue Kirke).