Sunny Marlborough is the nickname of:
- Charles Spencer-Churchill, 9th Duke of Marlborough (1871–1934)
- John Spencer-Churchill, 11th Duke of Marlborough (1926–2014)
This page lists people with the nickname Sunny Marlborough. If an internal link intending to refer to a specific person led you to this page, you may wish to change that link to directly target the intended article.