The Williams baronetcy, of Cilgeraint, parish of Llandygai, in the County of Carnarvon, was created in the Baronetage of the United Kingdom on 3 July 1953 for the politician Herbert Williams, Member of Parliament for Reading, Croydon South and Croydon East. As of the title is held by the 3rd Baronet, who succeeded in 2013.
The heir apparent is the present holder's son Thomas Alexander Philip Williams (born 1992).