Glenstal Abbey is a Catholic Benedictine monastery of the Congregation of the Annunciation located in Murroe, County Limerick, Ireland. It is dedicated to Saint Joseph and Saint Columba. As of 2018, the abbot of the monastery was Brendan Coffey.

The Congregation of the Annunciation, formerly known as the Belgian Congregation, is a congregation of monasteries within the Roman Catholic Benedictine Confederation. Founded in 1920, the Congregation includes fifteen independent male monasteries spread throughout ten countries. Additionally, two female monasteries are members of the Congregation, while a further ten are affiliated with the Congregation.