The Last Detective is a British TV drama series, broadcast on ITV between 7 February 2003 and 31 May 2007, starring Peter Davison as the title character, Detective Constable "Dangerous Davies". The series is based on the "Dangerous Davies" series of novels written by Leslie Thomas, and was filmed in the north London suburbs of Willesden, Neasden and Harlesden. The gentle but engrossing nature of the series was in stark contrast to other hard-hitting police dramas of the time, but this appeared to be a winning formula, becoming a surprise rating success.

The first series aired in 2003, with three more series following it. The first, second and third series all consist of four 70-minute episodes (90-minutes with advertisements). The fourth series saw the format change to 90-minute episodes (120-minutes with advertisements), and is slightly longer, encompassing five episodes in the series. After a total of seventeen episodes, production company Meridian Broadcasting (later Granada Productions), who produced the programme, stated that the series had been axed due to falling viewing figures, and that the fourth series would be the last.

The Granada series was not the first time that the title character had appeared on television. He previously appeared in a TV movie, first broadcast on 4 January 1981, starring Bernard Cribbins.