Leonhardt

Leonhardt is a surname. Notable people with the surname include:
 * Andreas Leonhardt (1800–1866), 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 with the New York Times
 * Elizabeth Leonhardt (1867–1953), American naval nurse, one of the Sacred Twenty
 * Ernst Leonhardt (1885–1945), American-born Swiss Nazi politician
 * Fritz Leonhardt (1909–1999), German civil engineer
 * Gustav Leonhardt (1928–2012), Dutch musician
 * Herbert Leonhardt (1925–1986), 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 (1895–1963), American illustrator
 * Olivier Léonhardt (1964–2022), French politician
 * Paige Leonhardt (born 2000), Australian swimmer
 * Paul Saladin Leonhardt, (1877–1934), German chess master
 * Ralph Leonhardt (born 1967), German skier
 * Robert Leonhardt (1877–1923), Austria-born baritone
 * Sven Leonhardt (born 1968), German skier
 * Ulf Leonhardt (born 1965), German-British scientist