Ornstein
Ornstein may refer to:
- Axel Ornstein, Swedish chess master
- Donald Samuel Ornstein, American mathematician
- Jonathan G. Ornstein, CEO of Mesa Air Group, Inc.
- Leo Ornstein, Russian-American composer
- Leonard Salomon Ornstein, Dutch physicist known for the Ornstein–Zernike equation and the Ornstein–Uhlenbeck process
- Michael Marisi Ornstein, American actor
- Norman J. Ornstein, American political scientist
- Robert Ornstein, American psychologist
- Severo Ornstein, American computer scientist and son of Leo Ornstein
- Dragon Slayer Ornstein, an enemy boss in the game Dark Souls.
