Yannis, Yiannis, or Giannis (Γιάννης) is a common Greek given name, a variant of John (Hebrew) meaning "God is gracious." In formal Greek (e.g. all government documents and birth certificates) the name exists only as Ioannis (Ιωάννης). Variants include Yannis (Also Janni), Iannis, Yannakis, Yanis, and the rare Yannos, usually found in the Peloponnese and Cyprus.

Feminine forms are Γιάννα (Yianna, Gianna) and Ιωάννα (Ioanna) which is the formal variant used in formal/government documents.

Yannis may refer to:

See also edit