c1735-78. He was the father of Admiral Sir Thomas Williams.
Williams was commissioned lieutenant on 10 February 1757 and promoted commander on 2 March 1759. He joined the fireship Salamander 8, which was re-rated a sloop of sixteen guns in August 1761 before reverting to a fireship shortly afterwards, and which he commanded until December 1762 when she was sold out of the service.
From August 1766 until August 1769 he had the brig Peggy 8 off the east coast of Scotland and north-east England in the preventative service, and at the end of the latter year he assumed command of the Otter 14, which he took out to Newfoundland in May 1770 before returning later in the year. On 10 January 1771 he was one of fourteen officers posted captain, including somewhat confusingly his namesake, William Peere Williams, but although appointed for purposes of rank only to the Enterprise 40 it was reported that he continued in command of the Otter through to March when he brought her into Portsmouth. On 8 July he was appointed to the dull sailing Wolf 8 which he retained until June 1774, being employed off the Cornish coast in the Preventative Service where on one occasion he used one captured smuggling vessel in pursuit of another.
On 6 October 1775 Williams recommissioned the frigate Active 28, going out from Cork with a convoy for North America in the following February and being present at the unsuccessful attack on Charleston on 28 June 1776, where she grounded and run out of ammunition. Thereafter he briefly commanded the Experiment 50 and Rose 20 for the badly wounded Captain Alexander Scott.
Resuming the command of the Active in the autumn, he departed New York for home with dispatches in November 1776 and arrived at Plymouth thirty-four days later. He then sailed for Jamaica in March 1777 before returning to Portsmouth from Newfoundland at the end of October. In December he faced a court-martial at Portsmouth on the charge that he had left his station on the Newfoundland Banks contrary to orders, but it being accepted that his return had been of a necessity he was honourably acquitted.
In February 1778 Williams departed England once more with a convoy to assume duty on the Jamaican station. On 1 September the storm-damaged Active, having been obliged to shed eleven guns several days before in a hurricane, fell in with the French frigates Charmante 38 and D daigneuse 26 off San Domingo, and after two broadsides she struck her colours. Williams died from wounds on 14 September whilst a prisoner on San Domingo, and his grief at losing his command was said to have contributed greatly to his death.