Karl or Carl Richter may refer to:
Karl Richter (botanist) (1855–1891), Austro-Hungarian botanist Karl Richter (conductor) (1926–1981), German conductor, organist, and harpsichordist Karl Richter (gymnast) (1887–1918), German gymnast Karl Richter (sport shooter) (1876–1959), Swedish sport shooter Karl Richter (tennis) (born 1960), American tennis player Karl W. Richter (1942–1967), American US Air Force officer
See also Josef Karl Richter (1880–1933), a Bohemian composer and military bandmaster