Dionysius of Corinth was a second-century Christian bishop and writer who served the church in Corinth. Living during the era of Emperor Marcus Aurelius, he is primarily known through the historical writings of Eusebius. His correspondence reveals a leader engaged in maintaining orthodoxy, encouraging charity, and fostering unity among various Christian communities. He is recognized as a saint in several traditions, including Catholic, Orthodox, and Anglican, with his feast day observed on April 8.