|Full name||Derek Chadwick|
|Date of birth||21 March 1941|
|Place of birth||Busselton, Western Australia|
|1959–1972||East Perth||269 (-)|
1 Playing statistics correct to the end of 1972.
Derek Chadwick (born 21 March 1941) is a former Australian sportsman, playing both first class cricket with Western Australia and Australian rules football for East Perth in the Western Australian Football League (WAFL).
Chadwick was a right-handed batsman and made 4082 runs at 34.30 during his cricketing career, with 9 centuries. As a footballer he was a wingman and played a club record 269 games for East Perth, winning their best and fairest award twice. In 1964 he won a Simpson Medal for his performances with the Western Australian state team in tours of Melbourne and Adelaide.