The mutiny on the Royal Navy vessel HMS Bounty occurred in the South Pacific Ocean on 28 April 1789. Disaffected crewmen, led by acting-Lieutenant Fletcher Christian, seized control of the ship from their captain, Lieutenant William Bligh, and set him and eighteen loyalists adrift in the ship's open launch. The reasons behind the mutiny are still debated. Bligh and his crew stopped for supplies on Tofua, losing a man to natives. Bligh navigated more than 3,500 nautical miles in the launch to reach safety and began the process of bringing the mutineers to justice. The mutineers variously settled on Tahiti or on Pitcairn Island.

Mutiny is a revolt among a group of people to oppose, change, or remove superiors or their orders. The term is commonly used for insubordination by members of the military against an officer or superior, but it can also sometimes mean any type of rebellion against any force. Mutiny does not necessarily need to refer to a military force and can describe a political, economic, or power structure in which subordinates defy superiors.