Gregory of Sanok (Polish: Grzegorz z Sanoka; Sanok, 1403 or 1407 – 29 January 1477, Rohatyn) was a Polish bishop, a professor at the Kraków Academy, metropolitan archbishop of Lwów, scholar, philosopher and a major figure of Polish humanism.
He left home at age twelve and for the next ten years traveled across Europe, including Germany, where he learned the language.
He graduated in 1433, was appointed tutor to the children of Jan Tarnowski, and journeyed with the family to Italy.
He came to the attention of Pope Eugenius IV and studied in Florence.
After returning to Poland in 1439 he was a professor of Graeco-Roman poetry and Italian literature at the Kraków Academy.