|Location||Öja, Södermanland, Sweden|
|Year first constructed||1689|
|Year first lit||1651|
|Tower shape||cylindrical tower with conical upper end|
|Markings / pattern||White and red paint|
|Height||25 metres (82 ft)|
|Focal height||44.5 metres (146 ft)|
|Original lens||Open fire|
|Current lens||3rd order Fresnel lens|
|Range||22 nautical miles (41 km; 25 mi)|
|Characteristic||Fl. (5) 60 s|
Landsort, is a Swedish village and a lighthouse on the island of Öja. The tower was built in 1689, with an upper conical iron section added in 1870. Open fires have been lit here since a long time ago.
The first "real" lighthouse was lit in 1651 and, until the now-standing tower was built, a couple of different buildings were used as the lighthouse. The 1689 tower was constructed to carry an open fire which ran on coal. In 1840, a colza oil lamp was installed. The flame ran on paraffin from 1887, and in 1938 it was electrified. Today the Swedish Maritime Administration owns and runs the lighthouse.
Landsort traditionally marks the southernmost point of the Stockholm Archipelago.