The Randsfjorden Line (Norwegian: Randsfjordbanen) is an 87-kilometre-long (54 mi) railway located in Buskerud in Norway connecting Drammen to Hønefoss and Jevnaker in Akershus county.

The entire line is standard gauge, and the 71 kilometres (44 mi) from Drammen to Hønefoss is electrified at 15 kV  16.7 Hz AC.

On 11 June 1857, railway director Carl Abraham Pihl was demanded by a Royal Decree to instruct a terrain investigation of the area along the river Drammenselva from Drammen to Randsfjorden.

[2] He presented the results of the investigation on 31 May 1858, which concluded that the terrain between Drammen and Randsfjorden was favorable for a rail line.

He argued with forester Thorvald Meiddell, who wanted to construct a canal rather than a rail line.