Cambridgeshire is a county in England.
Cambridgeshire may also refer to:
- Cambridgeshire (UK Parliament constituency), (1290–1885 and 1918–1983)
- Cambridgeshire (European Parliament constituency) (1979–1984 and 1994–1999)
- Cambridgeshire (historic), from the 10th century, an area in the eastern half of the present county
- Cambridgeshire and Isle of Ely, a former administrative county 1965–1974
- HMT Cambridgeshire (FY142), a British armed trawler
- Cambridgeshire Handicap, a horse race run at Newmarket racecourse
- The Cambridgeshire, a greyhound race run between 1936 and 1982