Halley's Comet (disambiguation)

Halley's Comet is a short-period comet visible from Earth every 75–76 years.

Halley's Comet or Haley's Comet may also refer to:
 * Halley's Comet (video game), a 1986 arcade game
 * "Haley's Comet", a song by Dave Alvin from the album Blue Blvd (1991)
 * "Halley's Comet", a song by Billie Eilish from the album Happier Than Ever (2021)