Lady Anne Barnard (1750 – 1825), British author of the ballad Auld Robin Gray"

Christiaan Neethling Barnard (1922 – 2001), a South African surgeon, who performed the world's first heart transplant operation

Barnard's star, one of the Sun's nearest neighbours

Tom Barnard, an American radio talk show host

Barnard College, an American independent college of liberal arts and sciences for women

John Barnard (1940s – ), a British race car designer

Barney Gumble, a fictional character on The Simpsons

Neal D. Barnard, an American medical doctor, author, and clinical researcher

Francis Jones Barnard, Member of Parliament in Canada from 1879 to 1887

Edward Emerson Barnard (1857 – 1923), an American astronomer

Henry Barnard (1811 – 1900), an American educationalist

Barnard Castle, a castle and its surrounding town in Teesdale, County Durham, England

Baron Barnard, of Barnard Castle in the Bishoprick of Durham, a title created in 1698 in the Peerage of England

Frederick Augustus Porter Barnard (1809 – 1889), an American scientist and educationalist

John Gross Barnard (1815 – 1882), a US Army general during the American Civil War and Chief Engineer of the Defenses of Washington (1863-1864)

Barnard, Vermont, an American town

Barnard's Galaxy, NGC 6822, in Sagittarius

Bill Barnard (1886 – 1958), a New Zealand politician

Bernard Courtois (or Barnard Courtois), (1777 – 1838), a French chemist

Barnard Elliott Bee, Jr. (1824 – 1861), a Confederate Army general during the American Civil War

Kate Barnard (1875 – 1930), an American politician

Mary Barnard (1909 – 2002), an American poet and translator

Alfred Barnard (1837 – 1918), British brewing and distilling historian

Barnard's Inn, the current home of Gresham College in Holborn, London, England

George Grey Barnard (1863 – 1938), an American sculptor

Barnard, Kansas, an American city

Barnard, Missouri, an American city

Chester Irving Barnard (1886 – 1961), a telecommunications executive and author

Barnard (unit), a unit of measurement used in psychological, sociological and anthropological studies

Barnard (lunar crater)

Barnard 33, another name for the Horsehead Nebula, a dark nebula in the constellation of Orion

Barnard's Loop, an emission nebula in the constellation of Orion

Cecil Barnard, the youth name of Hotep Idris Galeta (1941 – ), a South African jazz pianist and educator

Lance Herbert Barnard (1919 – 1997), an Australian politician

Barnard Elliott Bee, Sr. (1787 – 1853), an early settler and political leader in the Republic of Texas

Marius Barnard, a South African surgeon, brother of Christiaan Barnard and inventor of critical illness insurance.

Barnards Green, a popular district centre in Great Malvern, Worcestershire, England

Ernest Barnard, President of Major League Baseball's American League, 1927–1931

Barnard, South Dakota, an American unincorporated community

HMS Barnard Castle (renamed Empire Shelter), a Castle-class corvette of the Royal Navy (1944 – 1955)

Barnard Island Group National Park, a national park in Queensland, Australia

Barnard (crater on Mars)