Lockhart is a surname of Scottish origin.

• Anne Lockhart (actress) (born 1953), US actress
• Beatriz Lockhart (1944–2015), Uruguayan pianist, music educator and composer
• Bob Lockhart, Canadian politician
• Bob Lockhart (footballer) (1940–2010), Australian footballer
• Calvin Lockhart (1934–2007), Bahamian–American actor
• Carla Lockhart (born 1985), British Member of Parliament
• Charles Lockhart (disambiguation), various people
• Chekira Lockhart Hypolite, Dominican politician
• Dennis P. Lockhart (born 1947), US businessman and president of Atlanta Federal Reserve since 2007
• E. Lockhart (born 1967), pen name for American writer Emily Jenkins
• Eugenia Lockhart (fl. 1908–1960), Bahamian suffragette
• Frank P. Lockhart, (1881–1949), US diplomat
• Frank Lockhart (1903–1928), American automobile racing driver
• Gene Lockhart (1891–1957), Canadian character actor, singer and popular composer
• George Claude Lockhart (1885–1979), British circus ringmaster
• George William Lockhart (1849–1904), British elephant trainer
• Grace Annie Lockhart (1855–1916), the first woman in the British Empire to receive a bachelor's degree
• Hayden Lockhart (born 1938), the first American Air Force pilot to be shot down over North Vietnam, held as a prisoner of war for eight years
• Jackie Lockhart (born 1965), Scottish curler
• James Lockhart (disambiguation), various people, including:
  • J. B. Lockhart (1886–1969), Scottish mathematician
  • James Lockhart (historian) (1933–2014), American academic and historian, specialising in colonial Latin America
  • James Stewart Lockhart (1858–1937), British colonial official in Hong Kong and China
• Joe Lockhart (born 1959), US political aide
• John Gibson Lockhart (1794–1854), Scottish writer and editor
• June Lockhart (born 1925), US actress
• Kathleen Lockhart (1894–1978), English stage actress
• Keith Lockhart (born 1959), American conductor
• Keith Lockhart (baseball) (born 1964), American baseball player
• Laurel Lockhart, American actress, known for Beyond Belief: Fact or Fiction
• Michael Lee Lockhart (1960–1997), American serial killer
• Norman Lockhart (footballer) (1924-1993), Northern Irish footballer
• Paul Lockhart (born 1956), NASA astronaut
• Paul D. Lockhart (born 1963), American historian
• R. H. Bruce Lockhart (1887–1970), journalist, author, secret agent, British diplomat and footballer
• General Sir Rob Lockhart (1893–1981), British general and Scouting notable
• Samuel Lockhart (1851–1933), British elephant trainer
• Sean Paul Lockhart (born 1986), American actor
• Seán Marty Lockhart (born 1976), Northern Irish Gaelic footballer
• Thomas Lockhart (MP) (1739–1775), Scottish lawyer and politician
• Thomas Lockhart (1935–2018), American politician, Republican member of the Wyoming House of Representatives since 2001
• Tommy Lockhart (1892–1979), American ice hockey administrator, founder of USA Hockey
• William Lockhart (disambiguation), various people
• William Ewart Lockhart (1846–1900), Scottish Victorian painter
• Clan Lockhart, a Lowland Scottish clan
  • Lockharts of Lee
    • Count James Lockhart (Scottish aristocrat) of Lee and Carnwath, Count Lockhart-Wisheart of the Holy Roman Empire
    • Sir Simon Lockhart (1300–1371), crusader knight and discoverer of the "Lee Penny"
    • Sir William Lockhart of Lee (1621–1675), Oliver Cromwell's ambassador at Paris
    • Sir George Lockhart (politician) of Lee (1673–1731), Scottish writer and politician
  • Sir William Lockhart of Tarbrax
  • Anne Lockhart of Tarbrax
  • Anne Lockhart, Countess of Aberdeen
  • George Lockhart of Tarbrax

• Abby Lockhart in ER
• Gilderoy Lockhart in Harry Potter and the Chamber of Secrets
• Bonnie Lockhart, Patrick Lockhart, Mimi Lockhart, and Conner Lockhart in Days of Our Lives
• Skye Lockhart Newman from The Young and the Restless
• Sally Lockhart in books by Philip Pullman
• Detective Chief Superintendent Tom Lockhart in the television series No Hiding Place
• Tifa Lockhart in the video game Final Fantasy VII
• Diane Lockhart in the television series The Good Wife
• Richard "Dickie" Lockhart in Carl Hiaasen's 1987 novel Double Whammy

• Lockhart (disambiguation)
• Lockheart