Paullus is a cognomen of ancient Rome, also appearing as an apparent praenomen of several Romans.

• Marcus Aemilius L.f. Paullus, consul 302 BC
• Marcus Aemilius M.f. Paullus, consul 255 BC
• Lucius Aemilius Paullus, consul 219 BC, 216 BC, killed at Battle of Cannae
• Lucius Aemilius Paullus Macedonicus, consul and victor in Battle of Pydna
• Lucius Aemilius Paullus, consul 50 BC
• Aemilius Lepidus Paullus[?], suffect consul 34 BC
• Paullus Fabius Maximus, consul 11 BC
• Lucius Aemilius Paullus, consul 1 AD
• Paullus Fabius Persicus, consul 34 AD
• Lucius Sergius Paullus, consul 168