Thomas Fitzwilliam (disambiguation)
Thomas Fitzwilliam was Speaker of the House of Commons of England.
Thomas Fitzwilliam may also refer to:
- Thomas [Arthur Fitzwilliam], Irish physician
- Thomas [FitzWilliam, 1st Viscount FitzWilliam], Viscount FitzWilliam
- Thomas FitzWilliam, [4th Viscount FitzWilliam], Viscount FitzWilliam
- Thomas FitzWilliam, [9th Viscount FitzWilliam], Viscount FitzWilliam