Look up chaff or separate the wheat from the chaff in Wiktionary, the free dictionary.
Chaff is dry inedible plant material.
Chaff may also refer to:
- Chaff (countermeasure), a radar countermeasure for aircraft or other targets
- Chaff algorithm, an algorithm for solving instances of the boolean satisfiability problem
- Chaffing and winnowing, a method in cryptography to protect a message without encryption
- Chaff (newspaper), a former students' newspaper of Massey University Students' Association