Dionysios is a masculine given name of Greek origin, derived from the Greek god of wine, festivities, and theater, Dionysus. It consists of two elements: 'dion', meaning 'of Zeus', and 'ysios', meaning 'giving birth'. The name was popular among early Christians, with Saint Dionysius the Areopagite being one of its most notable bearers. In Greek Orthodox tradition, it is often associated with the feast day of Agia Paraskevi on July 26th.
The name Dionysios has seen a steady increase and decrease in popularity over the decades, with a notable spike in recent years.