Bucentaure was an 86-gun ship of the line of the French Navy, and the lead ship of her class. She was the flagship of Vice-Admiral Latouche Tréville, who died on board on 18 August 1804.

The Bucentaure class was a class of 80-gun French ships of the line built to a design by Jacques-Noël Sané from 1802 onwards, of which at least 29 were ordered but only 21 ships were launched. They were a development from his earlier Tonnant class.