Exciter may refer to:

• Exciter (band), a Canadian speed metal band
  • Exciter (Exciter album), also known as O.T.T., a 1988 album by Exciter
• Exciter (Depeche Mode album), a 2001 album by Depeche Mode
• "Exciter" (song) a 1978 song by Judas Priest from Stained Class
• "Excite", a 1999 song by Bomb Factory from Bomb Factory
• "Exciter", a 1983 song by Kiss from Lick It Up

• Exciter (effect), audio effect unit
• Exciter (audio transducer), a transducer.
• Exciter bulb, a light source for reading the optical soundtrack on motion picture film
• Exciter, the oscillator and modulator together in large transmitters
• Exciter, a component in an electrical alternator that provides direct current for excitation of a permanent magnet
• S2 6.8 Exciter, an American sailboat design
• Yamaha Exciter, a motorcycle model manufactured by Yamaha Motor Corporation

• Excitation (disambiguation)
• Excited (disambiguation)