Fred, Fredric, Fredrick, Frederic, or Frederick Harris may refer to:
- Frederick Rutherfoord Harris (1856–1920), British politician, MP for Monmouth Boroughs and Dulwich
- Leverton Harris (Frederick Leverton Harris, 1864–1926), British politician, MP for Tynemouth, Stepney, and East Worcestershire
- Fred Harris (lawyer) (1910–1979), American politician, judge and painter
- Fred Harris (British politician) (1915–1979), British businessman and politician
- Fred R. Harris (born 1930), American senator and presidential candidate
- Smokey Harris (Fred Thomas Wilfred Harris, 1890–1974), Canadian ice hockey player
- Fred Harris (footballer, born 1912) (1912–1998), English footballer for Birmingham City
- Fred Harris (rugby league) (fl. 1930s–1940s), English rugby league footballer for England, Leigh, and Leeds
- Frederick Harris (cricketer) (born 1934), English cricketer
- Fred Harris (Australian footballer) (1937–2019), Australian rules footballer
- Fred Harris (1887-1961), American sportsman played tennis competed in seven US Championships,and was also a notable skier.
- Frederick Harris (judoka) (born 1984), Olympic judoka from Sierra Leone