Saint Asterius may refer to:
Asterius of Ostia (d. c. 222), Priest and hieromartyr Asterius of Caesarea (d. 282), Roman senator who became a Christian martyr Asterius of Petra (d. 365), convert from Arianism and Bishop of Petra Asterius of Amasea (c. 350 – c. 410 AD), Bishop of Amasea between 380 and 390