Princess Hermine Reuss of Greiz (German: Hermine, Prinzessin Reuß zu Greiz; 17 December 1887 – 7 August 1947), widowed Princess of Schönaich-Carolath, was the second wife of Wilhelm II (1859–1941).
They were married in 1922, four years after he had abdicated as German Emperor and King of Prussia.