Siegler is a surname. Notable people with the surname include:
Edward Siegler (1881–1942), American gymnast and athlete Franck Siegler (born 1967), French serial killer and multi-recidivist killer M. G. Siegler (born 1981), American blogger and venture capitalist Mark Siegler (born 1941), American physician Robert S. Siegler (born 1949), American psychologist Sammy Siegler (born 1973), American rock drummer
See also Lear Siegler, created from a merger between the Siegler Corporation (Los Angeles) and Lear Avionics Inc. (Santa Monica) in 1961 Siegler Corporation, created by a group of investors in 1952 in Chicago, Illinois