Delvion is a rare French given name derived from the word "delphin," meaning dolphin, popularized during medieval France by adding "-on" suffix. Its usage throughout history has been limited, with few records mentioning individuals named Delvion, such as Delvion de la Garde, a French military officer in the 16th century. In some occult traditions, dolphins are considered spiritual guides or symbols of wisdom and intelligence, potentially lending significance to this name for those interested in these beliefs. Today, Delvion remains a distinctive but rarely used given name.