Yannis

Yannis, Yanis, Yiannis, or Giannis is a common Greek given name, a variant of John (Hebrew) meaning "God is gracious." In formal Greek the name exists only as Ioannis (Ιωάννης). Variants include Yannis, Iannis, Yannakis, Yanis, and the rare Yannos, usually found in the Peloponnese and Cyprus. (Wikipedia)