Sound barrier (disambiguation)

Sound barrier may refer to:
 * Sound barrier, the transition at transonic speeds from subsonic to supersonic travel, usually referring to flight
 * The Sound Barrier, a British 1952 film directed by David Lean
 * Sound Barrier, a heavy metal band from Los Angeles
 * Sound Barrier (film), a 2005 Iranian film
 * Noise barrier, an exterior structure designed to protect sensitive land uses from noise pollution