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