Waltner is a surname. Notable people with the surname include:
Charles Albert Waltner (1846–1925), French artist and etcher David Waltner-Toews (born 1948), Canadian epidemiologist, essayist, poet, fiction writer, abd veterinarian Róbert Waltner (born 1977), Hungarian football player and coach Willi Waltner (1934–1966), German wrestler