Sir Trevor Williams, 1st Baronet of Llangibby, Monmouthshire, was a Welsh gentry landowner and politician who sat in the House of Commons at various times between 1660 and 1692. He played a significant part in events during and after the English Civil War in South Wales, siding first with King Charles, then with the Parliamentarians, before rejoining the Royalists in 1648.
- Occupation
- politician
- Position held
- Member of Parliament in the Parliament of England, Member of the April 1660 Parliament, Member of the 1661-79 Parliament, Member of the 1679 Parliament
- Citizenship
- Kingdom of England
- Born
