Odd Einar Dørum (born 12 October 1943)[1] is a Norwegian former politician and former member of parliament, representing the Liberal Party.

He was leader of the party on two occasions (1982–1986 and 1992–1996) and served as minister in Kjell Magne Bondevik's both cabinets from 1997 to 2000 and again from 2001 to 2005.

Dørum grew up in Oslo, Bergen, and Trondheim, where he studied history at university.

[1] Protesting against the government turning several waterfalls into powerplants, he was carried away by police together with other prominent protestors like philosopher Arne Næss.

For decades he has been a huge fan of The Lord of the Rings books and made headlines when he showed up for the premiere of The Lord of the Rings: The Return of the King wearing a hobbits robe, much to the amusement of its star Viggo Mortensen.