Act of Piracy is a 1988 American–South African thriller film directed by John "Bud" Cardos and starring Gary Busey, Belinda Bauer, Ray Sharkey and Nancy Mulford.

Ted Andrews persuades his ex-wife Sandy to let their kids Mark and Tracey accompany him and his girlfriend Laura Warner on a journey on his multimillion-dollar yacht to Australia, which he plans to sell upon his arrival there.

Roger Hurlburt of the South Florida Sun Sentinel heavily panned the film, which he found "ineptly directed by John 'Bud' Cardos, wretchedly scripted and cheaply made".

"[17] The U.K.'s Lincolnshire Echo called it "a classic case of a promising thriller gone wrong," adding that "the film is made on the cheap, the script is weak, the acting wooden.

He acknowledged that "[t]here's not a lot going for this film", but "[d]espite this being a shoot em up yarn with decidedly average production values", he inexplicably "wanted to see poor Ted's battle through the end.

It was released in 1991 by Prometheus Records, the sister label of Belgian film music magazine Soundtrack!, on a CD that also features Stevens' score for Great White as a bonus.