55 Degrees North is a BBC television drama series starring Don Gilet as DS Nicky Cole, a London detective relocated to Newcastle upon Tyne after exposing police corruption. Dervla Kirwan co-stars as Claire Maxwell, an ambitious solicitor.

The first series was originally broadcast on BBC1 in 2004, with the second series following a year later. The programme was shown in the U.S. under its working title, The Night Detective. But it was axed in 2006, and production company Zenith North entered administrative receivership shortly thereafter; the programme's cancellation was described as a "heavy blow" for the company. Both series were released together in a complete box set on 26 June 2006.