Þjóðveldisbærinn Stöng is a reconstructed viking-era Long house or farmstead in Iceland, located in the Þjórsárdalur valley near road 32 in the Árnessýsla county. It is a replica of the building which stood at Stöng 7 km to the north which was buried under volcanic ash in 1104 following the eruption of the volcano Hekla.
The reconstruction was built in 1974 as a part of the national celebrations of the 1100th anniversary of the settlement of Iceland in 874.