Tacitus (disambiguation)

Tacitus was a Roman historian and senator.

Tacitus may also refer to:

• Tacitus (emperor), Roman emperor in 275–276
• Tacitus (crater), a lunar impact crater, named after the Roman historian
• Tacitus (horse) (foaled 2016), an American Thoroughbred racehorse
• 3097 Tacitus, an asteroid named after the Roman historian