Iohannis

Iohannis is a given name, the Latinized form of the Greek name Ioannes, which itself derives from the Hebrew name Yochanan, meaning "Yahweh is gracious". It is a name with significant historical and religious importance, most notably associated with several prominent figures.

The most famous bearer of this name is John the Baptist, a pivotal figure in Christianity and Islam, who baptized Jesus. Another highly significant individual is John the Apostle, traditionally believed to be one of the twelve apostles of Jesus and the author of the Gospel of John, the Epistles of John, and the Book of Revelation. Across various Christian traditions, numerous saints and martyrs are named John, contributing to the name's widespread popularity.

Beyond religious contexts, Iohannis is also the Latinized form of the name of several Byzantine Emperors, and it is a common given name in many European languages. Variations include John (English), Jean (French), Juan (Spanish), Johann (German), Ivan (Slavic languages), and Giovanni (Italian). The enduring presence of Iohannis across cultures and history reflects its deep roots and lasting appeal.