Birkhoff is the surname of:
- Garrett Birkhoff (1911–1996), American mathematician, son of George D.
- George David Birkhoff (1884–1944), American mathematician
Things named after George David Birkhoff:
- Birkhoff (crater)
- Birkhoff interpolation
- Birkhoff's axioms
- Birkhoff's theorem (disambiguation), multiple theorems
- Poincaré–Birkhoff–Witt theorem