| Sir Robert Williams | |
| Office1: | Member of Parliament for Beaumaris |
| Term Start1: | 1826 |
| Term End1: | 1831 |
| Office2: | Member of Parliament for Caernarvonshire |
| Term Start2: | 1790 |
| Term End2: | 1826 |
| Birth Date: | 20 July 1764 |
| Death Place: | Nice, France |
| Father: | Sir Hugh Williams |
| Children: | 2+, including Richard |
| Relatives: | John Eardley-Wilmot (son-in-law) |
Sir Robert Williams, 9th Baronet (20 July 1764 – 1 December 1830) was a British politician who sat in the House of Commons from 1790 to 1830.
Williams was the son of Sir Hugh Williams, 8th Baronet and his wife Emma Rowland.[1]
Williams was elected Member of Parliament for Caernarvonshire in 1790 and held the seat until 1826. He was then elected MP for Beaumaris and held the seat until his death in 1830.
Williams died at Nice, France at the age of 66.
Williams married Anne Lewis, daughter of Reverend Edward Hughes and Mary Lewis, on 11 June 1799. Their son Richard succeeded to the baronetcy, whilst their daughter Eliza Martha married Sir John Eardley-Wilmot, 2nd Baronet.