Three Japanese minesweepers have been named No.8 minesweeper (第八号掃海艇, Dai Hachi Gō Sōkaitei, "W-8"):
References
Japanese minesweeper No. 8 Wikipedia(Text) CC BY-SA
Three Japanese minesweepers have been named No.8 minesweeper (第八号掃海艇, Dai Hachi Gō Sōkaitei, "W-8"):