English form of Iohannes, the Latin form of the Greek name Ἰωάννης (Ioannes), itself derived from the Hebrew name יוֹחָנָן (Yoḥanan). It means "Yahweh is gracious", from the roots יוֹ (yo) referring to the Hebrew God and חָנַן (ḥanan) meaning "to be gracious". The Hebrew form occurs in the Old Testament (spelled Johanan or Jehohanan in the English version), but this name owes its popularity to two New Testament characters, both highly revered saints. The first is John the Baptist, a Jewish ascet...