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
See also
Tacticus (disambiguation) Tacitus bellus, or Graptopetalum bellum, a succulent plant