Billion Dollar Brain
- Tahun: 1967
- Negara: United Kingdom
- Genre: Thriller
- Studio: Lowndes Productions Limited
- Kata kunci: england, spy, cold war, texas, anti-communism, swinging 60s, supercomputer, harry palmer, finland
- Pengarah: Ken Russell
- Pelakon: Michael Caine, Karl Malden, Ed Begley, Oskar Homolka, Françoise Dorléac, Guy Doleman