Charles William Wentworth Fitzwilliam, 5th Earl Fitzwilliam in the peerage of Ireland and 3rd Earl Fitzwilliam in the peerage of Great Britain, was a British nobleman and politician. He was president three times of the Royal Statistical Society in 1838–1840, 1847–1849, and 1853–1855; and president of the British Association for the Advancement of Science in its inaugural year (1831–2).
- Occupation
- politician, statistician
- Position held
- member of the 11th Parliament of the United Kingdom, member of the House of Lords, member of the 10th Parliament of the United Kingdom, member of the 3rd Parliament of the United Kingdom
- Citizenship
- United Kingdom of Great Britain and Ireland, Kingdom of Great Britain
