A

• Aaron Nathaniel Hartman (born 2008), online social-media personality
• Angélica María Hartman (born 1944), American-born Mexican actress and singer
• Anton Hartman (1918–1982), South African conductor and music educator
• Arne Hartman (1940–2016), Finnish diplomat
• Arthur A. Hartman (1926–2015), American diplomat, ambassador to France and the Soviet Union
• Arthur Hartman (1881–1956), American violinist and composer

B

• Barend Hartman van Groningen (c. 1740 – 1806), Dutch Mennonite teacher and minister
• Billy Hartman (born 1957), Scottish actor
• Blanche Hartman (1926–2016), American Soto Zen teacher
• Bob Hartman (born 1949), American artist, singer/songwriter, & religious leader
• Brynn Hartman (1958–1998), American model & actress
• Butch Hartman (born 1965), American animator

C

• C. Bertram Hartman (1882–1960), American landscape painter
• Carl Johan Hartman (1790–1849), Swedish physician and botanist
• Carl Hartman (botanist) (1824–1885), Swedish botanist, son of Carl Johan
• Carl Vilhelm Hartman (1862–1941), Swedish botanist and anthropologist, son of Carl (1824–1885)
• Charles S. Hartman (1861–1929), U.S. Representative from Montana

D

• Dan Hartman (1950–1994), American singer/songwriter
• David Hartman (1931–2013), American rabbi
• David Hartman (born 1935), American journalist, actor and media host
• Don Hartman (1900–1958), American screenwriter and director
• Donald Adam Hartman (1929–1996), Mayor of Calgary (1989)
• Donniel Hartman, Israeli rabbi and philosopher

E

• Edward Hartman (1964–2003), American convicted murderer
• Elizabeth Hartman (1943–1987), American actress
• Ellen Hartman (1860–1945), Swedish actress

G

• Gabrissa Hartman (born 1975), Nauruan politician
• Geoffrey Hartman (1929–2016), German-born American deconstructionist literary critic
• George W. Hartman, American football coach
• Grace Hartman (1900–1998), first female mayor of Sudbury, Ontario
• Grace Hartman (1907–1955), American dancer and actress, wife of Paul Hartman
• Grace Hartman (1918–1993), Canadian labour union activist
• Greg Kroah-Hartman, computer scientist

J

• Jack Hartman (1925–1998), American basketball coach
• Jacobus Johannes Hartman (1851–1924), Dutch Latin philologist
• Jan Hartman (1887–1969), Dutch fascist and Nazi collaborator during World War II
• Jan Hartman (born 1967), Polish philosopher and bioethicist
• Jesse Lee Hartman (1853–1930), U.S. Representative from Pennsylvania
• Johnny Hartman (1923–1983), American jazz singer

K

• Kenneth E. Hartman (born 1960), American writer, prison activist and convicted murderer
• Kevin Hartman (born 1974), American soccer player
• Kim Hartman (born 1955), English actress

L

• Lisa Hartman (born 1956), American actress and singer
• Louis O. Hartman (1876–1955), American Methodist minister

M

• Marea Hartman (1920–1994), British athletics sport administrator
• Marie Louise Hartman (born 1959), known professionally as Nina Hartley, American pornographic film actress and sex educator
• Mauno Hartman (1930–2017), Finnish sculptor
• Milka Hartman (1902–1997), Austrian-Slovenian poet
• Mike Hartman (born 1967), American ice hockey player

O

• Olov Hartman (1906–1982), Swedish writer

P

• Paul Hartman (1904–1973), American dancer and actor, husband of Grace Hartman
• Paul Leon Hartman (1913–2005), American experimental physicist
• Peter G. Hartman (born 1947), English-German biochemist
• Peter Hartman (born 1949), Dutch executive, president of KLM from 2007 to 2013
• Phil Hartman (1948–1998), Canadian-born American actor, comedian, screenwriter, and graphic artist
• Philip Hartman (1915–2015), American mathematician, known a.o. for the Hartman–Grobman theorem
• Piet Hartman (1922–2021), Dutch crystallographer
• Piret Hartman (born 1981), Estonian politician

Q

• Quilindschy Hartman (born 2001), Dutch footballer

R

• Robert S. Hartman (1910–1973), German-born American logician and philosopher, né Robert Schirokauer
• Rosella Hartman (1895–1984), American painter, etcher and lithographer
• Ryan Hartman (born 1994), American ice hockey player
• Ryan Hartman (baseball) (born 1994), American baseball player

S

• Saidiya Hartman (born 1961), American writer and academic
• Sam Hartman (born 1999), American football player
• Samuel Brubaker Hartman (1830–1918), American businessman and physician
• Sid Hartman (1920–2020), American sports journalist
• Steve Hartman (sportscaster) (born 1958), American sportscaster
• Steve Hartman (born 1963), American broadcast journalist

T

• Tim Hartman (born 1965), American Filipino martial artist
• Tova Hartman (born 1957), Israeli gender studies scholar, daughter of David Hartman (rabbi)

V

• Victor Hartman (1839–1898), Swedish actor

W

• Wiesław Hartman (1950–2021), Polish equestrian
• Wink Hartman, American businessman

Matrilineal surnames

People with the Hartman surname serving as a secondary surname.

• Daniël Hartman Craven (1910–1993), South African rugby player, coach and administrator
• Daniel Hartman Hastings (1849–1903), U.S. politician who was governor of Pennsylvania

Fictional characters

• Dr. Elmer Hartman, Family Guy character named after Elmer "Butch" Hartman
• Erik Hartman, fictitious Belgian reality show presenter
• Mary Hartman, eponymous character of the satirical soap opera Mary Hartman, Mary Hartman
• Gunnery Sergeant Hartman, a character in the 1987 film Full Metal Jacket