Perpetual Motion Machine (disambiguation)

A perpetual motion machine is a hypothetical machine that can do work indefinitely without an energy source.

Perpetual Motion Machine may also refer to:

• Perpetual Motion Machine (13 Engines album), 1993
• Perpetual Motion Machine (Synthetic Breed album), 2010
• "Perpetual Motion Machine", a song by Klaatu from the album Sir Army Suit
• "Perpetual Motion Machine", a song by Modest Mouse from the album No One's First, and You're Next