Japanese minesweeper No. 7

Three Japanese minesweepers have been named No.7 minesweeper (第七号掃海艇):


 * JAPANESE MINESWEEPER No. 7, ex-JAPANESE DESTROYER Isonami, a of the Imperial Japanese Navy in World War I
 * JAPANESE MINESWEEPER No. 7, ex-JAPANESE DESTROYER Yamakaze, a of the Imperial Japanese Navy in World War I
 * JAPANESE MINESWEEPER No. 7, lead ship of of the Imperial Japanese Navy in World War II