Westbury is a surname. Notable people with the surname include:
- David Westbury (1923âÂÂ1983), English physician
- Edgar T. Westbury (1896âÂÂ1970), British model engineer
- Frank Atha Westbury (1838âÂÂ1901), British author, popular in Australia and New Zealand
- Gerald Westbury (1927âÂÂ2014), English surgeon who pioneered treatments for cancer
- Isabelle Westbury (born 1990), English cricketer
- Jayne Westbury (born 1957), English former cyclist
- John Westbury (died c. 1440/49), MP for Wiltshire in 1417 and 1419
- June Westbury (1921âÂÂ2004), Canadian politician born in New Zealand
- Katherine Westbury (born 1993), Thai-New Zealand tennis player
- Ken Westbury (1927âÂÂ2023), British cinematographer
- Marcus Westbury (born 1974), Australian festival director
- Marjorie Westbury (1905âÂÂ1989), English actress and singer
- Paul Westbury, business executive
- Peter Westbury (1938âÂÂ2015), British racing driver
- Richard Bethell, 1st Baron Westbury (1800âÂÂ1873), Lord Chancellor of Great Britain
- William de Westbury (died c. 1440), English judge