The church of San Pietro di Castello is a church located in Venice, Italy. It is situated in the Castello district, near the island of San Pietro. It is one of the oldest churches in the city and was originally the cathedral of Venice until the title was transferred to the Basilica of San Marco. The current church dates back to the 16th century and features a beautiful bell tower and a Renaissance-style facade. Inside, it houses important works of art, such as paintings by Alvise Vivarini and Giovanni Bellini.