List of things named after Ernst Witt

• Bourbaki–Witt theorem
• Hall–Witt identity
• Hasse–Witt matrix
• Poincaré–Birkhoff–Witt theorem, usually known as the PBW theorem
• Shirshov–Witt theorem
• Witt algebra
• Witt decomposition
• Witt design
• Witt group
• Witt index
• Witt polynomial
• Witt ring
• Witt scheme
• Witt's theorem
• Witt vector