Reifenstein may refer to:
Reifenstein Abbey, a Cistercian abbey near the present village of Kleinbartloff, Germany Reifenstein Castle, a castle in Freienfeld, northern Italy Burgruine Reifenstein, a castle in Styria, Austria Reifenstein syndrome or partial androgen insensitivity syndrome, a condition that results in the partial inability of the cell to respond to androgens.