Rubjerg Knude Lighthouse is located on the coast of the North Sea in Rubjerg. It was first lit on December 27, 1900.

The lighthouse is on the top of Lønstrup Klint (cliff), 60 metres (200 ft) above sea level.

Both shifting sands and coastal erosion are a serious problem in the area. The coast is eroded on average 1.5 metres (4.9 ft) a year, which can be seen most clearly at the nearby Mårup Church. Built around 1250, the church was originally 1 kilometre (0.62 mi) from the coast, but was dismantled in 2008 to prevent its falling into the sea.

The lighthouse ceased operating on August 1, 1968. By 2009, the small buildings around the lighthouse were severely damaged by the pressure of the sand. It is expected that the tower will fall into the sea by 2023.