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.

Jacques-Noël Sané was a French naval engineer. He was the creator of standardised designs for ships of the line and frigates fielded by the French Navy in the 1780s, which served during the French Revolutionary Wars and the Napoleonic Wars and in some cases remained in service into the 1860s. Captured ships of his design were commissioned in the Royal Navy and even copied.