San Giorgio dei Greci (Greek: Ἅγιος Γεώργιος τῶν Ἑλλήνων, romanized: ´Agios Geórgios ton Ellínon, lit. 'Saint George of the Greeks') is a church in the sestiere (neighborhood) of Castello, Venice, northern Italy. It was the center of the Scuola dei Greci, the Confraternity of the Greeks in Venice.
For centuries, despite the close ties of Venice to the Byzantine world (Venice has been part of the Byzantine Empire), the Greek Orthodox rite was not permitted in Venice. In 1498, the Greek community in Venice gained the right to found the Scuola de San Nicolò dei Greci, a confraternity which aided members of that community. In 1539, after protracted negotiations, the papacy allowed the construction of the church of San Giorgio, financed by a tax on all ships from the Orthodox world.
Construction was started by Sante Lombardo, and from 1548, by Giannantonio Chiona. The belltower was built in 1592.