A pendulum is a body suspended from a fixed support so that it swings freely back and forth under the influence of gravity, and it may refer to:

Pendulum clock, a kind of clock that uses a pendulum to keep time

Foucault pendulum, a pendulum that demonstrates the earth's rotation

Pendulum, a hardcore pornographic magazine published by Michael Thevis

Pendulum (1968 film), a 1968 film starring George Peppard

Pendulum (mathematics), the mathematical principles of a pendulum

Pendulum (band), an Australian electronic group from Perth

Pendulum (derivations), derivations from these principles

The Pendulum EP, an EP by Insane Clown Posse collecting singles that accompanied a comic book series of the same title

Pendulum (album), a 1970 album by Creedence Clearwater Revival

Mackerras Pendulum, a model devised by Malcolm Mackerras to predict election outcomes

Pendulum (Ambient Band), an Australian ambient house band from Melbourne

The Pendulum, a publication devoted to radiesthesia

Pendulum Instruments, a Swedish manufacturer of scientific instruments

"Pendulums", a song by Sarah Harmer from her album All of Our Names

Pendulum (Broadcast album), a 2003 EP by Broadcast, and a song on the EP

Pendulum, a trade name for the preemergent herbicide pendimethalin

Pendulum (EP), a 2006 album by Tara Simmons, and a song on the EP