Hersey is both a surname and a given name. Notable people with the name include:
Surname:
- David Hersey (born 1939), American lighting designer
- Derek Hersey (1956–1993), British rock climber
- Ira G. Hersey (1858–1943), politician from the U.S. state of Maine
- John Hersey (1914–1993), American writer
- Kathleen Hersey (born 1990), American swimmer
- Mark L. Hersey (1863–1934), United States Army officer
- Mayo D. Hersey (1886–1978), American engineer
- Samuel F. Hersey (1812–1875), politician from the U.S. state of Maine
- Thayer David, born David Thayer Hersey (1927–1978), American actor
Given name:
- Hersey Hawkins (born 1966), former American professional basketball player
- Hersey Kyota, Palau politician
- William Hersey Hopkins (1841–1919), American academic and college administrator
Companies:
- Hersey & Son, Silversmiths