Oscar Tietz
Oscar Tietz (18 April 1858 – 17 January 1923) was a Jewish-German businessman (Unternehmer).
He was born in Birnbaum/Warthe (Międzychód) near Posen, in what was then the Kingdom of Prussia and is now Poland. The brother of Leonhard Tietz, and a nephew of Hermann Tietz, he joined his uncle's department store concern, in Berlin, Tietz Department Store (Elberfeld).
Oscar Tietz died in Klosters, Switzerland at age 64.