Acepsimas of Hnaita was a bishop and martyr who lived in western Persia during the 4th century. He was a prominent figure among the Christians persecuted under the reign of Shapur II. Following his refusal to adopt Zoroastrianism, he was arrested and subjected to severe physical punishment. His life and death are preserved in Syriac literature within collections of martyr acts, which document the many Christians killed during the Sasanian era for their faith.