Siefert

Siefert is a surname. Notable people with the surname include:


 * Annemarie Gethmann-Siefert (born 1945), professor of philosophy at the University of Hagen, Germany
 * Janet Siefert, origin of life researcher
 * Louisa Siefert (1845–1877), French poet
 * Paul Siefert, (1586–1666), German composer and organist
 * Silvia Siefert (born 1953), former East German Olympic handball medalist