Drain may refer to:
Objects and processes
- Drain (plumbing), a fixture that provides an exit-point for waste water or for water that is to be re-circulated on the side of a road
- Drain (surgery), a tube used to remove pus or other fluids from a wound
- Drainage, the natural or artificial removal of surface and sub-surface water from a given area
- French drain, a system that redirects surface water and groundwater away from an area
- Storm drain, a system of collecting and disposing of rain water in an urban area
- Drain (transistor), a terminal in a field effect transistor
Art and entertainment
- Drain (band), an American noise rock band
- Drain (comics), a comic book series starring a vampire
- Drain STH, a disbanded female hard-rock band from Sweden
- Data Drain, a fictional element and technique in the .hack universe
- "Drain", by X Japan from Dahlia
Places
- Drain, Oregon, a city in Douglas County, Oregon, United States
- Drain, Maine-et-Loire, a commune in Maine-et-Loire département, France
- Waterloo & City line, in the London Underground, nicknamed "The Drain"
People with the surname
- Charles Drain (disambiguation), several people
- Dorothy Drain (1909–1996), Australian journalist, columnist, war correspondent, editor and poet
- Gershwin A. Drain (born 1949), American federal judge
- Thomas Drain (1880-?), Scottish footballer