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, veterinarian and a specialist in the epidemiology
- Róbert Waltner (born 1977), Hungarian football coach and a former player
- Willi Waltner (1934–1966), German wrestler
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