Kleinschmidt is an occupational surname of German origin, which means "small smith", that is, a maker of small forged items and metal hand tools. The name may refer to:
Edward Kleinschmidt (1876–1977), American inventor
Edward Kleinschmidt Mayes (born 1951), American poet
Franz Heinrich Kleinschmidt (1812–1864), German missionary
Jutta Kleinschmidt (born 1962), German race driver
Lena Kleinschmidt (1835–1886), American jewel thief
Mark Kleinschmidt (born 1974), German rower
Mark Kleinschmidt (politician) (born 1970), American politician
Otto Kleinschmidt (1870–1954), German ornithologist
Paul Kleinschmidt (1883–1949), German painter
Samuel Kleinschmidt (1814 –1886), German missionary
Theodor Kleinschmidt (1834–1881), German trader and explorer
Tim Kleinschmidt (born 1956), American politician
Tom Kleinschmidt (born 1973), American basketball player
Wilhelm Kleinschmidt (1907–1941), German submarine commander
