Ehlinger is a surname. Notable people with the surname include:
Aaron von Ehlinger (born 1987), American former politician and convicted rapist Ladd Ehlinger Jr. (born 1968), American filmmaker Maurice Ehlinger (1896–1981), French painter Nicolas Wagner Ehlinger (born 1992), Luxembourgian dressage rider Sam Ehlinger (born 1998), American football quarterback