HMS Harwich (1743)

HMS Harwich was a 50-gun fourth-rate ship of the line of the Royal Navy, launched in 1743. She was built at Harwich Dockyard, from which she took her name, according to the 1741 Establishment.

Harwich saw service during the War of the Austrian Succession and the Seven Years' War. During the War of the Austrian Succession, she was actively involved in patrolling the English Channel and participating in convoy escort duties.

In the Seven Years' War, Harwich participated in several notable engagements. She was involved in the Battle of Minorca in 1756 under the command of Captain Cosbyn, where the British fleet was defeated by a French force, leading to the loss of Minorca. She also served in the Western Squadron, intercepting French shipping.

She was sold out of the service in 1763.