Pure play
Spielrein, Spielrain, Szpilrajn is the surname of the following people:
- Edward Szpilrajn (1907–1976), Polish mathematician
- Ewald Emiljewitsch Spielrain (1926–2009), Russian physicist and university professor
- Jan Nikolajewitsch Spielrein (1887–1938), Russian mathematician and university professor
- Sabina Spielrein (1885–1942), Russian-Jewish doctor and psychoanalyst