Onslow (surname)
Onslow is a surname. Notable people with the surname include:
- Alexander Onslow, third Chief Justice of the Supreme Court of Western Australia
- Arthur Onslow
- Cranley Onslow, British politician
- Denzil Onslow
- Edward Onslow, British nobleman, Member of Parliament and fellow of the Royal Society
- George Onslow
- Guildford Onslow, English politician
- Jack Onslow, American Major League Baseball player, manager, coach and scout
- Muriel Wheldale Onslow, British biochemist
- Richard Onslow
- Thomas Onslow
- William Onslow, 4th Earl of Onslow
- William Onslow, 6th Earl of Onslow
