San Gregorio is a former church in Venice, northern Italy, located in the sestiere (district/neighborhood; literally "sixth") of Dorsoduro.

It is not far from Santa Maria della Salute basilica, behind the Palazzo Genovese.

In the mid-15th century it was rebuilt to the current appearance under design by Antonio da Cremona.

In 1775, after a long period of crisis, the monastery was closed and in 1807, after the Napoleonic occupation of Italy, also the parish church was suppressed.

It now serves as a storage center art, but has experienced structural damage.