Caeca may refer to:
- the plural of caecum (see pyloric caeca in humans)
- Caeca et Obdurata, a papal bull promulgated by Pope Clement VIII in 1593, which expelled the Jews from the Papal States
- Latin binomial abbreviations for species
- A. caeca (disambiguation)
- C. caeca
- E. caeca
- G. caeca
- L. caeca
- M. caeca
- T. caeca