HMS Tonnant (1798)
 HMS Tonnant (French language: Thundering) was an 80-gun ship of the line of the Royal Navy. She had previously been the Tonnant of the French Navy and the lead ship of the Tonnant class. Rear-Admiral Horatio Nelson captured her at Aboukir Bay off the coast of Egypt at the Battle of the Nile on 1 August 1798. She was taken into British service as HMS Tonnant.