Andronicus of Pergamum (Greek: Άνδρόνικος) was an ambassador of Attalus II Philadelphus.
He was sent to Rome in 156 BCE, to inform the Roman Senate that Prusias II of Bithynia had attacked the territories of Attalus.
Attalus again sent Andronicus to Rome, to oppose this diplomatic request, and demonstrate why the fine was fair.
Though it is speculated by some scholars that winning over the heir to the Bithynian throne was already part of Andronicus's agenda at that point.
[3] The three set sail from Ostia Antica and met at the city of Berenice, in Epirus, where Andronicus and his soldiers hailed Nicomedes as king of Bithynia, and promised the assistance of Attalus.