The Church of Saint Athanasius (Italian: Sant’Atanasio, Latin: S. Athanasii), also known as Sant'Atanasio dei Greci (Greek: Εκκλησία Αγίου Αθανασίου των Ελλήνων, Ekklisia Agiou Athanasiou ton Ellinon), is a Greek Catholic titular church located on Via del Babuino 149, near the Spanish Steps, in the rione Campo Marzio of Rome, Italy.

Construction was patronized by the Pope Gregory XIII and the Jesuit order to promulgate and serve the interests forming a Congregation of the Greeks.

Either side of a large window is written an inscription, one in Greek and the other in Latin in honor of Saint Athanasius of Alexandria.

On the left stands a tower clock, donated by Pope Clement XIV in 1771, which faces the palace of the Pontifical Greek College.

[2] In the 1963 novel and 1968 film, Shoes of the Fisherman, Ukrainian Kiril Lakota, Eastern rite Metropolitan Archbishop of Lviv, is appointed cardinal priest with Saint Athanasius as his titular church (before being elected Pope).