Churn may refer to:
- Churn drill, large-diameter drilling machine large holes appropriate for holes in the ground
Dairy-product terms
- Butter churn, device for churning butter
- Churning (butter), the process of creating butter out of milk or cream
- Milk churn, container for milk transportation
- Chuck Churn (born 1930), Major League Baseball pitcher in 1957–1959
Geography
- Devils Churn, Pacific inlet in Lincoln County, Oregon, U.S.
- England:
- River Churn, river running through Gloucestershire
- Churn railway station (inactive)
- British Columbia, Canada:
- Churn Creek
- Churn Creek Provincial Park, in Churn Creek Protected Area
Music
- Churn (Shihad album), 1993
- Churn (Seven Mary Three album), 1994
Business
- Product churning, a business practice whereby more of the product is sold than is beneficial to the consumer
- Churning (stock trade), the excessive buying and selling of a client's stocks by a trader to generate large commission fees
- Churn rate, a measure of the number of individuals or items moving into or out of a collective over a specific period of time.
Technology
- Churning (cipher), an encryption function used in the ITU G.983.1 standard.
Other
- Manthan, an Indian word meaning churn