I-58 was a Japanese B3 type cruiser submarine^[​2] that served in the final year of World War II. Modified to carry Kaiten manned torpedoes, she damaged two enemy destroyers with them^{[dubious – discuss]}, but her most significant success was USS Indianapolis, sunk with conventional torpedoes on 30 July 1945. The submarine surrendered in September 1945, and was later scuttled by the United States Navy.