Leonhardt is a surname. Notable people with the surname include:
- Andreas Leonhardt (1800âÂÂ1866), Austrian musician
- Brett Leonhardt (born 1982), Canadian ice hockey goaltender
- Brian Leonhardt (born 1990), American football tight end
- Carolin Leonhardt (born 1984), German sprint canoer
- Chad Leonhardt (born 1980), American mixed martial artist
- David Leonhardt (born 1973), American business journalist and Pulitzer Prize winner
- Elizabeth Leonhardt (1867âÂÂ1953), American naval nurse, one of the Sacred Twenty
- Ernst Leonhardt (1885âÂÂ1945), American-born Swiss Nazi politician
- Fritz Leonhardt (1909âÂÂ1999), German civil engineer
- Gustav Leonhardt (1928âÂÂ2012), Dutch musician
- Herbert Leonhardt (1925âÂÂ1986), German skier
- Holm Arno Leonhardt (born 1952), German scientist
- Jessica Leonhardt, better known as Jessi Slaughter, cyberbullying victim
- Jürgen Leonhardt (born 1957), German classical philologist
- Kent Leonhardt (born 1954), American politician
- Olive Leonhardt (1895âÂÂ1963), American illustrator
- Olivier Léonhardt (1964âÂÂ2022), French politician
- Paige Leonhardt (born 2000), Australian swimmer
- Paul Saladin Leonhardt, (1877âÂÂ1934), German chess master
- Ralph Leonhardt (born 1967), German skier
- Robert Leonhardt (1877âÂÂ1923), Austria-born baritone
- Sven Leonhardt (born 1968), German skier
- Trudelies Leonhardt (born 1931), Dutch musician based in Switzerland
- Ulf Leonhardt (born 1965), German-British scientist
See also