Hopperstad Stave Church () is a historic parish church of the Church of Norway in the village of Vikøyri in Vik Municipality in Vestland county. It was historically the church for the Hopperstad parish in the Diocese of Bjørgvin. The brown, wooden stave church was built during the 12th century. The church seats about 30 people.
The stave church is assumed to have been built around the year 1130 and still stands at its original location. The church is one of the oldest stave churches still standing in Norway. The church is currently owned by the Society for the Preservation of Ancient Norwegian Monuments.
There is a replica of the Hopperstad Stave Church at the Heritage Hjemkomst Center in the city of Moorhead in the state of Minnesota in the United States. It was dedicated in 1998. The replica church is part of a larger complex that includes a museum and Scandinavian heritage center.
The medieval timbers of the church bear a significant number of graffiti, carved in runes.
No records exist as to what the medieval church actually looked like. There are a variety of sketches showing a nave and chancel. The church did not undergo any major changes until the 1600s. At that time the nave was lengthened to the west, and a bell-tower was added above the new extension. To the east, a new section was added and built out of logs. A new vestibule to the south with its own entrance was also added. In 1723, the church was sold into private ownership at the Norwegian church auction so the King could pay off debts from the Great Northern War. Together with more than 300 other parish churches across Norway, it was a polling station for elections to the 1814 Norwegian Constituent Assembly which wrote the Constitution of Norway. This was Norway's first national elections. Each church parish was a constituency that elected people called "electors" who later met together in each county to elect the representatives for the assembly that was to meet at Eidsvoll Manor later that year.
In the 1870s, the two neighboring Hove Church and Hopperstad Stave Church parishes were both in need of new churches. The issue was first raised by the local parish priest Jørgen Christian Andreas Grøner who complained about the size of the two churches. Both churches were old and small and due to their age, they were in dire need of improvements. The local villagers believed he was exaggerating and the private owners of the church did not want to spend money on the churches. Soon after, the local priest decided to no longer hold services at the Hopperstad Stave Church since it was so cold and drafty. Within a short period of time, it was decided to merge the two neighboring parishes into one larger parish. On 11 December 1875, a royal decree was issued that ordered the closure of both churches and the construction of a new church in Vikøyri for the newly created parish. In 1877, the new Vik Church was constructed and the two older churches were taken out of regular use and preserved as historical sites.
The church contains an altar dedicated to the Virgin Mary, and 14th-century ciborium with a baldachin on the north side. The ciborium has four sculptured heads, that of Christ with a halo, a queen, a king, and a monk. The roof of the baldachin bears a painting of the birth of Christ.