Churn or
churning may refer to:
- Butter churn, a device used for churning butter.
- River Churn, a river running through Gloucestershire.
- Churn rate, the average number of customers that leave a subscription service during a year.
- Churn (album), a 1993 music album by New Zealand rock band Shihad.
- Churn (Seven Mary Three album), a 1994 rock album by Seven Mary Three.
- Churning (stock trade), the excessive buying and selling of stocks by a trader such as a broker to generate large commission fees.
- Religious Churn, the movement of religious members from one denomination or religion to another approximately every 3-5 years; this "churn" displays the inner turmoil in individual faith, and demonstrates that for all statistical growth in any religion, there is an equal and opposite statistical loss in another.