Look up twin in Wiktionary, the free dictionary.
A twin is one of two offspring produced in the same pregnancy.
Twin may also refer to:
- Twin, Alabama, a city in the United States
- Twin, Belgium, Walloon name of the Belgium city of Thuin
- Twin (production team), a Swedish record production and songwriting team
- Twin (TV series), a Norwegian television crime drama series from 2019
- Twin (windowing system), a windowing environment for text mode displays
- Twin pattern, software design pattern
- Willows TWIN, a Windows emulator
- Twin, a member of the Minnesota Twins baseball team
- Flat-twin engine
- V-twin engine
- Straight-twin engine, also referred to as a parallel-twin
- Crystal twin, a crystal sample with two domains containing a twin boundary
- Twin house, semi-detached housing
- Twin towns and sister cities, towns and cities involved in town twinning
- Gemini Twin, an American two-seat powered parachute design
- Air Creation Twin, a French two seat ultralight trike design