San Giacomo di Rialto is a church in the sestiere of San Polo, Venice, northern Italy. The addition of "Rialto" to the name distinguishes this church from its namesake San Giacomo dall'Orio found in the sestiere of Santa Croce, on the same side of the Grand Canal. It has a large 15th century clock above the entrance, a useful item in the Venetian business district but regarded as a standing joke for its inaccuracy. The Gothic portico is one of the few surviving examples in Venice. It has aLatin cross plan with a central dome. Inside, the Veneto-Byzantine capitals on the six columns of ancient Greek marble date from the 11th century.