Schmaltz or Schmalz is a German surname. Notable people with the surname include:
Clarence Vincent Schmalz (1916–1981), Canadian ice hockey administrator Devon Vonder Schmalz (born 1999), American singer-songwriter better known as Dev Lemons Gabriele Krone-Schmalz (born 1949), German journalist and author Gottfried Schmalz (born 1946), German dental academic Herbert Gustave Schmalz (1856–1935), British painter Jeffrey Schmalz (1953–1993), American journalist Jordan Schmaltz (born 1993), American ice hockey player Julien-Désiré Schmaltz (1771–1826), French colonial administrator Kathy Schmaltz, American politician from Michigan Nick Schmaltz (born 1996), American ice hockey player Roland Schmaltz (born 1974), German chess player Tad Schmaltz (born 1960), American philosopher Valentin Schmaltz (1572–1622), German writer and theologian Wilhelm Schmalz (1901–1983), German army general William Schmalz (1862–1933), Canadian insurance company executive