The phalanx is a rectangular mass military formation.

Phalanx may also refer to:

Military Phalanx CIWS, a U.S. Navy defense system to protect against an anti-ship missile Royal Phalanx, a special military unit formed of veterans of the Greek War of Independence

Politics North American Phalanx, a utopian community in New Jersey, organized on proto-communist Fourierist principles, or its journal The Phalanx The Spanish Falange Falangism, ideology of the above Falanga National Radical Camp/RNR-Falanga/ONR-Falanga - Polish extreme right party The Lebanese Kataeb Party

Places Phalanx, New Jersey, an unincorporated area within Colts Neck Township, New Jersey Phalanx, Ohio, an unincorporated community Phalanx Mountain, a summit in British Columbia

Arts and literature Aliens: Phalanx, a 2020 science fiction horror novel by Scott Sigler Phalanx (art group), an artistic movement formed in Munich in 1901 Phalanx (comics), a species of villainous mechanical aliens in Marvel Comics The Phalanx, a Fourierist journal Phalanx, a journal published by the Military Operations Research Society Phalanx, the name of the false zombie proof drug in the novel by Max Brooks, World War Z The Phalanx Nations, a terrorist organization in the young adult novel, The Prophet of Yonwood Phalanx, a 2012 Warhammer 40,000 novel

Music Phalanx (album), a 1983 live album by Australian surf rock band, Australian Crawl Phalanx, a trance music group formed by Dennis Gertner, DJ Manian, and Manuel Schleis Phalanx (band), a jazz music group

Medicine Phalanx bone, the bones that form fingers and toes

Video games The fictional secret anti-alien invasion force the player commands in the fanmade UFO: Alien Invasion game, an open-source project in the X-COM tradition. Phalanx (video game), a Super NES and Game Boy Advance video game. The 13th Colossus from the video game Shadow of the Colossus. The first Demon (boss) in the PS3 game Demon's Souls. The nemesis of the protagonist in the Super NES game Demon's Crest. A Cabal enemy type from the video game Destiny. The standard ancient defensive unit in the Civilization series.

Other uses Phalanx (mythology), a figure in Greek mythology Phalanx (honor society), the seniors honor society at Rensselaer Polytechnic Institute. There is a similarly named society at Clarkson University. Phalanstère, a building layout developed by utopian socialist Charles Fourier Phalanx (horse), American Champion racehorse The falanges (legions of spirits) of the Brazilian Umbanda religion Phalanx organization, an aircraft contractor Phalanx Family Ties, a street family in Law & Order: Special Victims Unit