Alt (surname)
Alt is a surname. Notable people with the surname include:
- Albrecht Alt, German bible scholar and Protestant theologian
- Carol Alt, American model and actress
- Don Alt, American politician and businessman
- Ernst Alt, German Roman Catholic priest and exorcist
- Franz Alt , Austrian-born American mathematician
- Franz Alt , Austrian painter, brother of Rudolf
- Rudolf von Alt, Austrian painter
- Salome Alt, Austrian wife of Wolf Dietrich Raitenau
- Susanne Alt, German female saxophonist
