Hartwell is a surname. Notable people with the surname include:
Abraham Hartwell (the elder) (fl. 1565), English poet writing in Latin Abraham Hartwell (1553–1606), English translator and antiquarian Alfred S. Hartwell (1836–1912), American Civil War officer and Hawaii judge Alonzo Hartwell (1805–1873), American engraver and portrait artist Ambrose Hartwell (1883–??), English footballer Anthony Hartwell (1940–2023), British master mariner and baronet Michael Berry, Baron Hartwell (1911–2001), newspaper proprietor Brodrick C. D. A. Hartwell (1876–1948), British Army officer Brodrick Hartwell (1909–1993), British baronet Calvin Hartwell (died 1920), Mayor of Pasadena, California (1896–98) Charles Hartwell (1825–1905), American missionary Charles Leonard Hartwell (1873–1951), British sculptor David G. Hartwell (1941–2016), American science fiction and fantasy editor Dulcie Hartwell (1915–2012), South African trade union leader Edgerton Hartwell (born 1978), American football player Edward M. Hartwell (1850–1922), American academic Elizabeth S. Hartwell (1924–2000), American conservationist Emily Susan Hartwell (1859–1951), American missionary in China Erin Hartwell (born 1969), American cyclist Francis Hartwell (1757–1831), British Royal Navy officer Henry Hartwell (c.1641–1699), British lawyer and politician in the Colony of Virginia Indi Hartwell (born 1996), Australian professional wrestler Jack Hartwell Sr. (1902–1970), Australian rugby league footballer Jane Hartwell, American film producer J. Hartwell Harrison (1909–1984), American urologic surgeon and educator John A. Hartwell (1869–1940), American college football player and coach, military officer and physician John Hartwell (born c. 1965), American college athletics administrator Josephine Hartwell later Josephine Hartwell Shaw (1865–1941), American jeweler and metalworker Josh Hartwell (1869–1940), 19th-century American college football coach Leland H. Hartwell (born 1939), President and director of the Fred Hutchinson Cancer Research Center, Seattle; 2001 Nobel Prize laureate Lesley Hartwell (born 1949), South African lawn bowler Lori Hartwell, founder and president of the Renal Support Network Marten Hartwell (1925–2013), Canadian bush pilot Mary Hartwell (1747–1846), figure of the battles of Lexington and Concord Mary Hartwell (1847–1902), American author better known as Mary Hartwell Catherwood Peggie Hartwell (born 1939), African-American quilter and educator Robert Hartwell (1810–1875), British trade unionist and newspaper editor Ron Hartwell (died 2016), Canadian ice hockey player Ronald Max Hartwell (1921–2009, Australian-born economic historian Sharon Hartwell, Canadian politician William Hartwell (1880–??), English footballer
Fictional characters: Harley Hartwell, character from the manga series Case Closed Walter Hartwell White (Breaking Bad)