| William Williams | |
| Birth Date: | 1890 10, df=y |
| Birth Place: | Amlwch, Anglesey, Wales |
| Death Place: | Holyhead, Anglesey, Wales |
| Allegiance: |  United Kingdom |
| Rank: | Seaman |
| Unit: | Royal Naval Reserve |
| Battles: | World War I |
| Awards: | |
William Williams VC, DSM & Bar (5 October 1890 – 22 October 1965), was a Welsh recipient of the Victoria Cross, the highest and most prestigious award for gallantry in the face of the enemy that can be awarded to a member of the British and Commonwealth armed forces.
He was from Amlwch on Anglesey and at age 26 was serving as a seaman in the Royal Naval Reserve during the First World War when the following deed took place:
The Pargust's 'panic party', the decoy crew carried on every Q ship for the purpose of leaving it apparently abandoned when attacked, took to the lifeboats and the U-boat then surfaced, believing the Pargust to be a crewless and defenceless merchant vessel. When the U-boat was about away, the captain of HMS Pargust gave the order to fire and the submarine was blown up and sank.
In the case of a gallant and daring act in which all men are deemed equally brave and deserving of the Victoria Cross a secret ballot is drawn. The crew of HMS Pargust selected William Williams to be the recipient of the award due to a rating in the action.