| Martin Duffield | |
| Fullname: | Martin John Duffield |
| Birth Date: | 1964 2, df=y |
| Birth Place: | Park Royal, England |
| Position: | midfielder |
| Youthyears1: | –1982 |
| Youthclubs1: | Queens Park Rangers |
| Years1: | 1982–1985 |
| Clubs1: | Queens Park Rangers |
| Caps1: | 1 |
| Goals1: | 0 |
| Years2: | 1983 |
| Clubs2: | → AFC Bournemouth (loan) |
| Caps2: | 6 |
| Goals2: | 1 |
| Years3: | 1984 |
| Clubs3: | → Charlton Athletic (loan) |
| Caps3: | 1 |
| Goals3: | 0 |
| Years4: | 1985–1988 |
| Caps4: | 110 |
| Goals4: | 21 |
| Years5: | 1988–1992 |
| Clubs5: | Hendon |
| Caps5: | 111 |
| Goals5: | 15 |
| Years6: | 1992–1995 |
| Clubs6: | St Albans City |
| Caps6: | 113 |
| Goals6: | 34 |
| Years7: | 1995–1997 |
| Clubs7: | Hendon |
| Caps7: | 28 |
| Goals7: | 5 |
| Clubs8: | Sutton United |
| Nationalyears1: | 1982 |
| Nationalteam1: | England U18 |
| Nationalcaps1: | 1 |
| Nationalgoals1: | 0 |
Martin John Duffield (born 28 February 1964 in Park Royal, England), is an English footballer who played as a midfielder. He played in the Football League for Queens Park Rangers, AFC Bournemouth and Charlton Athletic.