Vettor Pisani was an Italian Vettor Pisani-class submarine, serving the Regia Marina during World War II. It was named after Vettor Pisani, a Venetian admiral. Vettor Pisani was laid down in the Cantiere Navale Triestino yards in Monfalcone on 18 November 1925, launched on 24 November 1927, and completed for the Regia Marina on 16 June 1929.