Hardwick is a surname. Notable people with the surname include:
- Alan Hardwick, English television presenter
- Anna Elisabeth Hartwick, Swedish lace industrialist
- Ben Hardwick, liver transplant patient
- Bess of Hardwick, English noble
- Billy Hardwick, ten-pin bowler
- Charlie Hardwick, English actress
- Chris Hardwick (born 1971), American actor and comedian
- Chris Hardwick (speed cuber)
- Christopher George Hardwick, English clergyman
- Chuck Hardwick, state legislator in New Jersey
- Damien Hardwick, Australian rules footballer
- Elizabeth Hardwick (writer), American literary critic and writer
- George Hardwick, English soccer player
- Hank Hardwick, American football coach
- Harold Hardwick, Australian sportsman
- Huntington Hardwick, American football player
- John Hardwick, film director
- Johnny Hardwick (1963–2023), American voice actor and comedian
- Lorna Hardwick, classicist
- Matt Hardwick, British trance music disc jockey
- Michael Hardwick (writer), English author
- Michael Hardwick, challenged sodomy laws in the U.S. state of Georgia
- Michelle Hardwick, English actress
- Mollie Hardwick, English author
- Neil Hardwick, British-born Finnish theatre and TV director and writer
- Nick Hardwick (American football)
- Omari Hardwick, American actor
- Otto Hardwick, saxophonist
- Paul Hardwick, English actor
- Peter Hardwick, Australian food horticulturist and environmentalist
- Philip Hardwick, English architect
- Philip Charles Hardwick, English architect
- Rob Hardwick, English rugby player
- Robert Hardwick, English-Canadian Anglican bishop
- Steve Hardwick, soccer player
- Taylor Hardwick, American architect
- Thomas Hardwick, Sr. (1725–1798), English master mason and architect
- Thomas Hardwick (1752–1829), English architect
- Thomas W. Hardwick (1872–1944), American politician
- Walter Hardwick, Canadian academic
- William Hardwick, Australian architect
- William G. Hardwick, American politician