William Alleyne Cecil, 3rd Marquess of Exeter PC, styled Lord Burghley between 1825 and 1867, was a British peer and Conservative politician. He served as Treasurer of the Household between 1866 and 1867 and as Captain of the Honourable Corps of Gentlemen-at-Arms between 1867 and 1868.
- Occupation
- cricketer, politician, aristocrat
- Position held
- Member of the Privy Council of the United Kingdom, member of the 19th Parliament of the United Kingdom, member of the 18th Parliament of the United Kingdom, member of the 17th Parliament of the United Kingdom
- Citizenship
- United Kingdom of Great Britain and Ireland