A transistor is a semiconductor device used to amplify and switch electronic signals and electrical power.

Transistor may also refer to:

Music Transistor (311 album), 1997 "Transistor" (song), the title track by the band 311 from the album Transistor Transistor (TNT album) "Transistor", a song by Kraftwerk from the 1975 album Radio-Activity "Twisted Transistor", a song by Korn Transister, band

Other uses Transistor (video game), a 2014 video game by Supergiant Games

See also Transistor radio, a small portable radio receiver using transistor-based circuitry