Reykjavík Cathedral (Icelandic: Dómkirkjan í Reykjavík) is a cathedral church in Reykjavík, Iceland, the seat of the Bishop of Iceland and mother church of the Evangelical Lutheran Church of Iceland, as well as the parish church of the old city centre and environs. It is located at Austurvöllur, and next to it is Alþingishúsið (the parliament house).
Since Iceland's parliament, the Alþingi, was resurrected in 1845, each session of parliament has begun with a Mass at the cathedral, and from there the dean of the cathedral leads the members of parliament to the parliament house.
The organ boasts three manuals and thirty-one independent voices and was built in Berlin by Karl Schuke GmbH.
Iceland’s main cathedral, Dómkirkja is a modest affair, but it played a vital role in the country’s conversion to Lutheranism. The current building (built in the late 18th century and enlarged in the 1840s) is small and perfectly proportioned, with a plain wooden interior animated by glints of gold.