HMS Conquestador was a 74-gun third rate built for the Royal Navy in the first decade of the 19th century. Completed in 1810, she played a minor role in the Napoleonic Wars. launched on 1 August 1810 at Northam.
She was cut down to a 50-gun ship in 1827, and hulked in 1860. Conquestador was sold out of the Navy in 1897.