An obelisk is a tall, four-sided monument.

Obelisk may also refer to:

Geography Obelisk Beach, a beach in New South Wales, Australia Obelisk Col, a mountain pass on James Ross Island in Antarctica Obelisk Mountain, a mountain in Antarctica Obelisk Hill, a former name of Monument Hill, the site of the Fremantle War Memorial Obelisk Islet, an island in the Torres Strait in Queensland, Australia

Fiction Obelisk, a fictional weapon in the game Command & Conquer Obelisk the Tormentor, a Yu-Gi-Oh! God card "The Obelisk", a minicomic in the Masters of the Universe comic line

Music The Obelisk, a predecessor of the alternative band The Cure "Obelisk", a song by the metalcore band Northlane from the album Node

Structures The Obelisk, Castle Howard, a structure in England The Obelisk, Studley Royal, a structure in England Obelisk (Sanssouci), a structure at the eastern entrance to Sanssouci Park in Potsdam, Germany

Other uses Obelisk (biology), a class of viroid-like elements Obelisk (hieroglyph), an Ancient Egyptian hieroglyph Obelisk (typography) or dagger (†), a typographical symbol Obelisk posture, a position that some dragonflies and damselflies assume to avoid overheating Obelisk (Prague Castle), a monolith and World War I monument in Prague, Czech Republic Obelisk Press, a Paris publisher Obelisk ship, a type of ship historically used to transport obelisks The Obelisk, a painting by Hubert Robert (1733-1808) The Obelisks of Enlightenment, a fictional monster created by analog horror film maker Doctor Nowhere

See also Monolith, a large block of stone with ceremonial purposes Obelism, the practice of annotating manuscripts with marks set in the margins. Dagger (mark) (), a type of obelism, is called an obelisk in older texts Obelus, a type of obelism; the name of the symbol () in older texts Obelix, a character in the Asterix comic strips Stele, a stone or wooden slab erected as a marker