Attalus

Attalus may refer to:

• Several members of the Attalid dynasty of Pergamon
  • Attalus I, ruled 241 BC–197 BC
  • Attalus II Philadelphus, ruled 160 BC–138 BC
  • Attalus III, ruled 138 BC–133 BC

• Attalus (general), courtier and general of Philip II of Macedonia
• Attalus (son of Andromenes), general of Alexander the Great and Perdiccas
• Attalus of Rhodes, (2nd century BC), astronomer, contemporary of Hipparchus
• Attalus (Stoic), Stoic philosopher (c. 25 AD) and teacher of Seneca
• Priscus Attalus, Roman senator who was proclaimed emperor twice by the Visigoths
• Attalus (beetle), a genus of beetles in the Malachiidae family