Phalanx (Greek word from phalangos, meaning Finger) can refer to:

• phalanx formation in ancient warfare
• phalanx bones in hands and feet
• Phalanx CIWS, a US Navy defense system to protect against an anti-ship missile
• Phalanx (comics), a species of villainous mechanical aliens in Marvel Comics' X-Men comic books
• Phalanx (video game)
• The Phalanx, a Fourierist journal
• North American Phalanx, a utopian community organized on proto-communist Fourierist principles
• Phalanstère, a building layout developed by utopian socialist Charles Fourier
• Phalanx art school, a private art school in Munich

• Phalanx (computer game), a chess-playing program
• Phalanx (computer programming quality assurance technique)
• the 13th Colossus from the video game Shadow of the Colossus

Phalange | Falango | Falange (militare)#Falange macedone | Falangisme | Falanga