Fairweather is a surname. Notable people with the surname include:
- Al Fairweather (1927–1993), British jazz musician
- Andy Fairweather Low (born 1948), Welsh guitarist, songwriter and vocalist
- Bruce Fairweather, American guitarist/bassist
- Carlton Fairweather (born 1961), English footballer (association football)
- Denvor Fairweather (born 1975), Belizean television producer and executive
- Digby Fairweather (born 1946), British jazz cornettist and broadcaster
- Drew Fairweather (born 1979), American author
- Eugene Fairweather (1920-2002), Canadian theologian
- Fred Fairweather (1913–1983), Australian footballer (Australian rules football)
- G. Ernest Fairweather, Canadian architect
- Gaynor Fairweather, British ballroom dancer
- Gordon Fairweather (1923–2008), Canadian lawyer and politician
- Ian Fairweather (1891–1974), Australian painter
- Jack Fairweather (politician) (1878–1948), Canadian lawyer and politician
- Jack Fairweather (writer)
- Jackie Fairweather (born 1967), Australian triathlete and long-distance runner
- Kate Fairweather (born 1975), Australian archer
- Katriona Fairweather (born 1978), Scottish curler, World champion
- Ken Fairweather, Papua New Guinean politician
- Patrick Fairweather (born 1936), British diplomat
- Roxanne R. Fairweather, Canadian businesswoman
- Simon Fairweather (born 1969), Australia archer
- Steven Fairweather (born 1977), Canadian musician
Fictional characters: