List of British middleweight boxing champions
List of British middleweight boxing champions is a table showing the boxers who have won the British middleweight title. The title has been sanctioned by the National Sporting Club since 1909, and later by its replacement the British Boxing Board of Control since 1929.
A champion may retire or voluntarily relinquish the title in order to fight for a higher-ranked championship. Where the date on which a champion relinquished the title is unclear, the date of the last BBBoC sanctioned fight is shown.
r–Champion relinquished title.
s–Champion stripped of title.
| Name | Duration of reign | Defences |
| Tom Thomas | 28 May 1906 – 14 November 1910 | 6 |
| Jim Sullivan | 14 November 1910 – 12 April 1912r | 0 |
| Jack Harrison | 20 May 1912 – 12 November 1913r | 0 |
| Pat O'Keeffe | 23 February 1914 – 22 May 1916 | 5 |
| Bandsman Jack Blake | 22 May 1916 – 28 January 1918 | 1 |
| Pat O'Keeffe | 28 January 1918r | 0 |
| Ted "Kid" Lewis | 11 March 1920r | 0 |
| Tom Gummer | 29 March 1920 – 28 March 1921 | 1 |
| Gus Platts | 28 March 1921 – 31 May 1921 | 1 |
| Johnny Basham | 31 May 1921r | 0 |
| Ted "Kid" Lewis | 14 October 1921 – 15 February 1923 | 3 |
| Roland Todd | 15 February 1923 – 4 June 1923r | 1 |
| Tommy Milligan | 12 July 1926 – 27 January 1927 | 2 |
| Frank Moody | 16 February 1927r | 0 |
| Alexander Ireland | 14 March 1928r | 0 |
| Frank Moody | 6 August 1928 – 17 September 1928 | 1 |
| Alexander Ireland | 17 September 1928 – 16 May 1929 | 2 |
| Len Harvey | 16 May 1929 – 10 April 1933 | 7 |
| Jock McAvoy | 10 April 1933 – 22 May 1939 | 4 |
| Ernie Roderick | 29 May 1945 – 28 October 1946 | 1 |
| Vince Hawkins | 28 October 1946 – 28 June 1948 | 1 |
| Dick Turpin | 28 June 1948 – 24 April 1950 | 2 |
| Albert Finch | 24 April 1950 – 17 October 1950 | 1 |
| Randolph Turpin | 17 October 1950r | 0 |
| Johnny Sullivan | 14 September 1954 – 16 June 1955 | 1 |
| Pat McAteer | 16 June 1955 – 5 September 1957r | 2 |
| Terry Downes | 30 September 1958 – 15 September 1959 | 1 |
| John McCormack | 15 September 1959 – 3 November 1959 | 1 |
| Terry Downes | 3 November 1959 – 5 July 1960r | 1 |
| George Aldridge | 26 November 1962 – 28 May 1963 | 1 |
| Mick Leahy | 28 May 1963 – 14 December 1964 | 1 |
| Wally Swift | 14 December 1964 – 8 November 1965 | 1 |
| Johnny Pritchett | 8 November 1965 – 26 February 1968r | 3 |
| Les McAteer | 14 July 1969 – 12 May 1970 | 1 |
| Mark Rowe | 12 May 1970 – 8 September 1970 | 1 |
| Bunny Sterling | 8 September 1970 – 11 February 1974 | 4 |
| Kevin Finnegan | 11 February 1974r | 0 |
| Bunny Sterling | 10 June 1975r | 0 |
| Alan Minter | 4 November 1975 – 14 September 1976r | 2 |
| Kevin Finnegan | 31 May 1977 – 8 November 1977r | 1 |
| Alan Minter | 8 November 1977r | 0 |
| Tony Sibson | 10 April 1979 – 6 November 1979 | 1 |
| Kevin Finnegan | 6 November 1979r | 0 |
| Roy Gumbs | 2 February 1981 – 14 September 1983 | 3 |
| Mark Kaylor | 14 September 1983 – 27 November 1984 | 1 |
| Tony Sibson | 27 November 1984r | 0 |
| Herol Graham | 24 April 1985r | 0 |
| Brian Anderson | 29 October 1986 – 16 September 1987 | 1 |
| Tony Sibson | 16 September 1987r | 0 |
| Herol Graham | 8 June 1988 – 23 September 1992 | 4 |
| Frank Grant | 23 September 1992 – 10 November 1993 | 2 |
| Neville Brown | 10 November 1993 – 17 January 1998 | 6 |
| Glenn Catley | 17 January 1998r | 0 |
| Howard Eastman | 30 November 1998 – 16 April 2003r | 3 |
| Scott Dann | 17 September 2004 – 16 September 2005r | 3 |
| Howard Eastman | 15 December 2006 – 28 September 2007 | 1 |
| Wayne Elcock | 28 September 2007 – 14 March 2009 | 2 |
| Matthew Macklin | 14 March 2009r | 0 |
| Darren Barker | 28 November 2009 - May 2011r | 0 |
| Martin Murray | 18 June 2011 - November 2012r | 0 |
| Billy Joe Saunders | 15 December 2012 - January 2015r | 3 |
| Nick Blackwell | 30 May 2015 – 26 March 2016 | 3 |
| Chris Eubank, Jr. | 26 March 2016 – 16 September 2016r | 1 |
| Tommy Langford | 26 November 2016 - 4 May 2018 | 2 |
| Jason Welborn | 4 May 2018 - 8 September 2018r | 1 |
| Liam Williams | 22 December 2018 - 8 March 2019r | 1 |