Hamersley is a surname. Notable people with the surname include:
- Hamersley family, Australian family including:
- Edward Hamersley (senior) (1810–1874)
- Edward Hamersley (junior) (1835 or 1836 – 1921)
- Samuel Hamersley (1842–1896)
- Vernon Hamersley (1871–1946)
- Harold A. Hamersley (1896–1967), Australian World War I flying ace
- Sir Hugh Hamersley (1565–1636), 17th century businessman and Lord Mayor of London
- Michael Hamersley, American tax lawyer and corporate whistleblower against the accounting firm KPMG's tax shelter fraud