Koschiz
Koschiz is the family name of the following people:
- Alexander Evgenjewitsch Porai-Koschiz (1877–1949), Russian chemist and university professor
- Evgeni Alexandrowitsch Porai-Koschiz (1907–1999), Russian solid-state chemist and university professor
- Michail Alexandrowitsch Porai-Koschiz (1918–1994), Russian chemist, crystallographer and university professor