Places

• Helicon (river), a river that no longer exists in the Macedonian city of Dion, mentioned in Greek myths
• Mount Helicon, a mountain located in Boeotia, Greece
• "Helikon," a mansion built in 1893 and designed by Charles Slayter in Strathfield, New South Wales
• Helikon Park, a park located in the Randfontein Local Municipality, West Rand District Municipality, Gauteng, South Africa
• Torre Helicon, the fourth tallest building in Monterrey, Mexico
• Helicon Home Colony, an experimental community created by author Upton Sinclair in Englewood, New Jersey, United States
• A fictional planet in the Arcturus sector, where Hari Seldon was born in Isaac Asimov's Foundation series

Arts and entertainment

• Helicon (instrument), a brass instrument that is part of the tuba family
• Helicon Mountain, the studio of Jools Holland
• Helicon, a 1977 album by The Four Seasons
• Helicon Records, a record label started in Israel in 1985
• "New Paths to Helicon, Pt. 1" and "New Paths to Helicon, Pt. 2," songs by the Scottish post-rock band Mogwai
• Helikon, a 1952 piano concerto by Mikis Theodorakis
• Helikon Opera, an opera company based in Moscow
• Englands Helicon, a collection of Elizabethan pastoral poems published in 1600
• Helicon Arts Cooperative, a non-profit 501(c)(3) organization that has produced Yesterday Was a Lie and other films
• Heliconian Club, a women's arts society in Toronto

Science and technology

• Helicon Filter is a software program used to edit photographs.
• Helicon Ape is a tool that adds Apache features to IIS web servers using ASP.NET.
• Helicon (crater) is a crater on the Moon formed by an impact.
• Helicon (physics) refers to low-frequency electromagnetic waves.
• Helikon vortex separation process is a method used to enrich uranium by using vortex separation.
• Helicon Double Layer Thruster is a prototype engine that helps spacecraft move through space.
• Helicon engine is a motorcycle engine used in the Buell 1125R and 1125CR models.