|Date of birth||21 June 1977|
|Height||1.94 m (6 ft 4 in)|
|* Senior club appearances and goals counted for the domestic league only|
He started his youth career in Fjellhamar FK and eventually continued to Lillestrøm. He made his Eliteserien debut in July 1996 against Vålerenga. After one more game for Lillestrøm he went on to Skjetten SK. In 2000 he joined Lyn and won promotion to 2001 Eliteserien, after which season he played three years for Hønefoss. Tenures in Austrian SW Bregenz and German Regionalliga club Chemnitzer FC followed.
After playing the 2007 1. divisjon for Moss he missed two years to knee injury.Already in the summer of 2008 he was advised to retire. In 2010 he instead became assistant manager of Drøbak-Frogn IL under Frode Birkeland, and in 2012 assistant manager of Fjellhamar FK under Jan Aksel Opsahl Odden.
- Romerikes Blad 21 September 1989, p. 19
- Gudbrand Ensrud at the Norwegian Football Federation (in Norwegian)
- Romerikes Blad 15 November 1996, p. 15
- "Gudbrand Ensrud som Lynspiller" (in Norwegian). Lynhistorie. Retrieved 2 November 2020.
- Gudbrand Ensrud at WorldFootball.net
- "Sjokket over beskjeden", Moss Dagblad 13 August 2008, p. 11
- "Gudbrand Ensrud klar for DFI", Østlandets Blad 29 January 2010, p. 20
- "Nye trenere for Fjellhamar FK", Romerikes Blad 4 January 2012