HMS London was a 90-gun second-rate ship of the line of the Royal Navy, launched on 24 May 1766 at Chatham Dockyard. London was originally launched as a 90-gun ship, as was standard for second rates at the time, but was later increased to 98-guns when she had eight 12 pounders installed on her quarterdeck. She was Sir Thomas Graves' flagship at the Battle of the Chesapeake in 1781. In the Action of 18 October 1782, she was raked by Scipion and had to let her escape.