Derek Harrison
Derek Harrison may refer to:
- Derek Harrison (cyclist) (born 1944), British Olympic cyclist
 - Derek Harrison (footballer) (born 1950), English footballer
 - Derek Harrison (speedway rider) (born 1959), British speedway rider
 - Derek Harrison (police officer) (1927–2011), British police officer
 
See also
- Derrick Harrison (1929–1967), rugby league footballer of the 1950s