Saturninus may refer to:
- Lucius Appuleius Saturninus (died 100 BC), tribune
- Lucius Antonius Saturninus (79), provincial governor and rebel against Domitian
- Julius Saturninus (279), provincial governor and rebel against Probus
- Saturninus (253-268), rebel against Gallienus
- Saturninus (consul 383), Roman consul in 383
- Venuleius Saturninus, jurist
- Several Christian saints known as Saint Saturninus
- The Emperor in William Shakespeare's play Titus Andronicus