Johnny Cash at San Quentin
- Tahun: 1969
- Negara: United Kingdom
- Genre: Documentary, Music
- Studio: Granada Television, ITV
- Kata kunci: prison, country music, concert film, san quentin
- Pengarah: Michael Darlow
- Pelakon: Johnny Cash, June Carter Cash, Marshall Grant, W.S. Holland, Carl Perkins, Bob Wooton