en Cygnus

Cygnus is the Latin word for swan and may refer to:

Astronomy

Cygnus (constellation), a northern constellation
- Cygnus A, a radio galaxy within the constellation
- Cygnus X (star complex), a star complex within the constellation
- Cygnus X-1, a binary system within the constellation
- Cygnus X-3, a binary system within the constellation

Cygnus 20, a Canadian sailboat design
Cygnus (spacecraft), a space vehicle developed by Orbital Sciences Corporation and Thales Alenia Space
Cygnus Air or Gestair Cargo, a Spanish cargo airline
Cygnus Business Media, a U.S.-based business-to-business publishing company
Cygnus Solutions, a company that provided commercial support for free software and the original developer of Cygwin

Cygnus (genus), the genus of most swans
Cygnus (mythology) or Cycnus, a number of characters in Greek mythology
Cygnus X-1 (song series), a 1977–1978 two-part song series by Rush
Cygnus X (music group), a trance music project
Cygnus (spacecraft), an expendable cargo spacecraft
Airbus A330 MRTT KC-330 Cygnus, South Korean aerial refuelling and military transport aircraft for the Republic of Korea Air Force (ROKAF) by Airbus
USS Cygnus, a fictional starship in The Black Hole
Empress Cygnus, a non-player character in the game MapleStory
Cygnus gas field, a UK North Sea gas field
Cygnus, Colombian Folk Rock/Metal Band