Several ships have been named Musashi (武蔵):
Japanese steam warship Musashi, an early steam warship of the Imperial Japanese Navy, formerly USRC Kewanee.
Japanese corvette Musashi, corvette of the Katsuragi-class corvette, of the Imperial Japanese Navy launched in 1886
Japanese battleship Musashi, a Yamato-class battleship of the Imperial Japanese Navy World War II
Musashi (yacht), a super yacht built by Feadship and delivered to business magnate Larry Ellison in 2010
MS Musashi, a Panamanian cargo ship
