Carnell can refer to:
- Andrew Carnell (1877-1951), Canadian politician
- Arthur Carnell (1862-1940), British sport shooter
- Bradley Carnell (born 1977), South African football (soccer) player
- Edward John Carnell (1919-1967), American theologian
- John Carnell (1912-1972), British science fiction editor
- Kate Carnell (born 1955), Australian politician
- Carnell Breeding (born 1991), American musician
- Carnell Estate, Ayrshire, Scotland