Campo San Barnaba is a small square located in the Dorsoduro district of Venice, Italy. The square is named after the church of San Barnaba, which is located on its western side. The church dates back to the 9th century and underwent several renovations and restorations over the centuries.

The square is surrounded by several historic buildings, including the Palazzo Barbarigo della Terrazza, which was built in the 16th century and is now a hotel. The square is also famous for its appearance in the 1979 film "Moonraker", where it was used as a location for a gondola chase scene.

The square is popular with locals and tourists alike, and is a great spot to relax and enjoy a coffee or gelato. It is also home to a weekly market, where you can find a variety of fresh produce, flowers, and other goods. In the evening, the square comes to life with the sound of live music and street performers, making it a great place to experience the vibrant culture of Venice.