Willoughby (given name)
Willoughby is a masculine given name which may refer to:
- Willoughby Aston, three Aston baronets
- Willoughby J. Edbrooke, American architect
- Willoughby Gray, English actor
- Willoughby Hamilton, Irish tennis, football and badminton player
- Willoughby D. Miller, American dentist and the first oral microbiologist
- Willoughby Norrie, 1st Baron Norrie, British Army lieutenant-general, Governor of South Australia and Governor-General of New Zealand
- Willoughby Sharp, American artist, independent curator, independent publisher, gallerist, teacher, and author
- Willoughby Shortland, British naval officer and colonial administrator, first Colonial Secretary of New Zealand, President of the island of Nevis, and Governor of Tobago
- Willoughby Smith, English electrical engineer who discovered the photoconductivity of selenium
- Willoughby Williams, American politician, father of Willoughby Williams Jr.
- Willoughby Williams Jr., American banker and sheriff