Josef Kastner
Josef Kastner is the name of the following people:
- Josef Kastner the Elder (1810–1872), Austrian painter and restorer
- Josef Kastner the Younger ( Josef Alexius Kastner ; 1844–1923), Austrian painter
- Josef Kastner (politician) (1904–1959), German politician (BVP, CSU)
- Josef Fritz Kastner (1888–1968), Austrian prehistoric