There are several notable people with the surname Orenstein. Alexander Jeremiah Orenstein, South African medical scientist and army general Henry Orenstein, American poker player and entrepreneur Henry Orenstein (painter), Canadian artist Howard Orenstein, American lawyer and politician Joan Orenstein, Canadian actress Leo Orenstein, Canadian television producer and director Peggy Orenstein, American writer Toby Orenstein, an American theatrical director, producer, and educator Tomer Orenstein, Israeli musician Walter Orenstein, American vaccinologist Zigu Ornea (born Orenstein or Ornstein), Romanian cultural historian See also Orenstein and Koppel Ornstein Jewish surnames