Halcyon may refer to:

Birds

• Halcyon (genus), a type of bird
• Tree kingfisher, a family of birds (Halcyonidae) containing the above genus

Games

• Halcyon (role-playing game), an indie role-playing game
• Halcyon (console), a video-game console
• Halcyon, a fictional class of starship that includes Pillar of Autumn in the Halo video game series
• Halcyon, a popular multiplayer map from Descent 3

Literature

• Halcyon (dialogue), a short dialogue attributed to Plato
• Halcyon (Stargate Atlantis novel), a novel by James Swallow
• Halcyon, the fictional capital city of the Thran civilization in the Magic: The Gathering universe

Music

• "Halcyon" (Chicane song)
• "Halcyon" (Orbital song)
• Halcyon (Best Of), an album by Orbital
• "Halcyon", a song by The Acacia Strain from 3750
• "Halcyon (Beautiful Days)", a song by Mono
• "Halcyon: The Heavy Silence: In Silent Rain", a song by ...And Oceans from Cypher
• "Here's to the Halcyon", a song by Old 97's from the album "Blame it on Gravity"
• "Halcyon Over Harlem", a song by The Coming Weak
• "Halcyon Mockery", a song and also title of a demo (2004) of UK-band Circumscriber

Ships

• Halcyon 23, a type of sailing ship built in England
• Halcyon class minesweeper, a type of British Royal Navy minesweeper
• Halcyon class torpedo gunboat, a type of British Royal Navy gunboat

Other

• Halcyon, California, U.S.
• Halcyon Castle, a castle in Travancore, Kerala, India
• Halcyon Gallery, a group of three art galleries in the United Kingdom
• Halcyon House, a Georgian style home in Washington, D.C., U.S.
• Halcyon Monitoring Solutions, a company that monitors performance of computer systems
• The Halcyon Company, a film studio
• Halcyon, A manufacturer of DIR dive equipment.
• Alkyon, A hydraulic consultancy and research company in the Netherlands.

See also

• Halcion, an insomnia drug
• Alcyone (disambiguation)
• Halcyon days
• Halcyon Days (disambiguation)