Urnes Stave Church (Norwegian: Urnes stavkirke) is a stave church at the Ornes farm, along the Lustrafjord in the municipality of Luster in Sogn og Fjordane county, Norway, about 5 kilometres (3.1 mi) east of the village of Hafslo.

It has been owned by Fortidsminneforeningen (Society for the Preservation of Norwegian Ancient Monuments) since 1881. In 1979, the Urnes stave church was listed as a World Heritage Site by UNESCO.

The church was built around 1130 or shortly thereafter, and still stands in its original location; it is believed to be the oldest of its kind. It provides a link between Christian architecture and the architecture and artforms of the Viking Age with typical animal-ornamentation, the so called "Urnes style" of animal-art.

Archaeological investigations have discovered the remains of one, or possibly two, churches on the site prior to the current building. The excavations uncovered holes in the ground from earth-bound posts which had belonged to an early post church, a type of church with walls supported by short sills inserted between free-standing posts. It is not known if this church had a raised roof above the central space of the nave like the present church. The earliest possible dating of this church is the early eleventh century.

A stave church is a medieval wooden church with a post and beam construction related to timber framing. The wall frames are filled with vertical planks. The load-bearing posts (stafr in Old Norse, stav in Norwegian) have lent their name to the building technique. Related church types are post churches and churches with palisade walls.

All of the surviving stave churches except one are in Norway, but related church types were once common all over northwestern Europe. The only remaining medieval stave churches outside Norway are one dating to approximately 1500 located at Hedared in Sweden and one Norwegian stave church that was relocated in 1842 to the outskirts of Krummhübel, Germany, now Karpacz in the Krkonoše mountains of Poland. One other church, the Anglo-Saxon Greensted Church in England, has many similarities but is not universally regarded as a stave church.

Archaeological excavations have shown that stave churches, best represented today by the Borgund stave church, descend from palisade constructions and later churches with earth-bound posts.