Johanna

Johanna is the Latinate feminine form of Johannes, itself derived from the Hebrew name Yohanan, meaning God is gracious. It spread widely across Europe during the medieval period through the influence of Christianity and veneration of figures associated with the New Testament. The name has been borne by numerous historical figures, including Johanna of Castile, known as Juana la Loca, queen of the Spanish kingdoms in the sixteenth century. Closely related forms include Joan, Jane, Jean, Joanna, Gianna, and Siobhan.