Churn

Churn may refer to:
 Butter churn, a device used for churning butter
 Churning (butter), the process of creating butter out of milk or cream
 Milk churn, container for milk transportation
 Churn drill, a large, older drilling machine that bores large diameter holes in the ground

People and places 
 Chuck Churn (born 1930), Major League Baseball pitcher from 1957 to 1959
 River Churn, a river running through Gloucestershire
 Churn Creek, a tributary of the Fraser River in British Columbia
 Churn Creek Protected Area, the provincial park surrounding the Churn Creek
 Devils Churn, a narrow inlet of the Pacific Ocean in Lincoln County, Oregon
 Churn railway station, a defunct rail platform on the former Didcot, Newbury and Southampton Railway of England

Music 
 Churn (Shihad album), 1993
 Churn (Seven Mary Three album), 1994
 Churn (band), Massachusetts post-punk band (1995-1997)

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.