Male first name (German): Yann; Yahweh is gracious, the Lord is good; Hebrew (New Testament): Yahweh = (Name of God); Chanan = favor, be gracious, name of the apostle and evangelist John, also known by John the Baptist; at the end of the Middle Ages, the most common Christian name in Germany, so far contributed 23 popes named John yann is the Celtic form of John which comes from Hebrew and means "God helps"