Johanna is a feminine name, a variant form of Joanna that originated in Latin in the Middle Ages, including an -h- by analogy with the Latin masculine name Johannes. The original Greek form Iōanna lacks a medial /h/ because in Greek /h/ could only occur initially. For more information on the name's origin, see the article on Joanna. Women named Johanna. Johanna Allik (born 1994), Estonian figure skater. Johanna van Ammers-Küller (1884–1966), Dutch writer. Johanna "Hannah" Arendt (1906–1975), German-born American political theorist. Johanna "Jo" Bauer-Stumpff (1873–1964), Dutch painter.
https://en.wikipedia.org/wiki/Johanna