Castner

Castner is a German surname. Notable people with the surname include:


 * Caspar Castner (1655–1709), German Roman Catholic missionary
 * Eugene Castner Lewis (1845–1917), American engineer and businessman
 * Hamilton Castner (1858–1899), American industrial chemist
 * Joseph Compton Castner (1869–1946), American general
 * Lawrence V. Castner (1902–1949), American businessman, fencer and military officer
 * Michael Castner, American journalist
 * Paul Castner (1897–1986), American baseball player