Zirc Abbey, formerly also Zircz Abbey, also known as Zircensis or Boccon, is a Cistercian abbey, situated in Zirc in the Diocese of Veszprém, Hungary.
The early history of the monastery is obscure as regards both names and dates, on account of its being so often referred to under both these titles: whether Zirc and Boccon were separate abbeys cannot now be definitely determined. It seems most probable that the foundation was made by Béla III, King of Hungary (1182), as the monastic domain was formerly a royal farm. Besides this grant, on which now stands the city of Zirc, many other donations were made to the nascent abbey, which soon became one of the most celebrated in the country. It was rich not only in temporal possessions but also in the spirit of fervor and religious regularity. In 1232 the foundation of Kutjevo Abbey in the present Croatia was made from Zirc, which became its mother-house.
This happy state continued for three centuries, but decadence set in before the end of the fifteenth century, and by 1526 the ravages of the Ottoman invasion of Hungary had depopulated the monastery, not one religious remaining at the end of the year. The buildings and possessions passed into the hands of laymen.
In the seventeenth century (1609) it was acquired by Canon Mihály Monoszlay. Thenceforth it remained the property of ecclesiastics, and in 1659 it was given to Holweis, Abbot of the Cistercian Lilienfeld Abbey, who appointed Márton Újfalusy (1660) its abbot, thus reviving it. From the jurisdiction of Lilienfeld it was transferred successively to that of Klostermarienberg Abbey (Borsmonostor) (1678) and Heinrichau Abbey (1700). From the latter abbey came a number of religious who gradually restored first the monastic buildings and church (consecrated 1745) and then regular observance in its primitive vigour.
In 1810 the community, in common with many others, was expelled, but was restored in 1814 under Abbot Antonius Dreta, from which time the abbey prospered more than ever before. Under his administration the abbeys at Pilis and Pásztó were united to Zirc, as was likewise, in 1878, the abbey at Szentgotthárd. In 1923 the Congregation of Zirc was established.