The Catholic Church in Iceland is part of the Catholic Church, under the spiritual leadership of the Pope. The island is served by a single diocese, the Diocese of Reykjavík, having a total of seven parishes. As of 2015, the ordinary is bishop Dávid Bartimej Tencer. The diocese is directly subject to the Holy See.

The Diocese of Reykjavík is a Latin Church diocese of the Catholic Church which covers the whole of the country of Iceland, and numbered 14,723 Catholics as of 2022. It is directly subject to the Holy See.