Oscillator may refer to one of the following.

• See Oscillation for the most general discussion of the term.
• Specific oscillators:
  • Armstrong oscillator
  • Clapp oscillator
  • Colpitts oscillator
  • Crystal oscillator
  • Electronic oscillator
  • Harmonic oscillator
  • Hartley oscillator
  • Oscillator in cellular automata.
  • Relaxation oscillator
  • Vackar oscillator