W-13-class minesweeper

The No.13 class minesweeper (第十三号型掃海艇,, Dai Jūsan Gō-gata Sōkaitei) was a class of minesweepers of the Imperial Japanese Navy (IJN), serving during the 1930s and World War II.

6 vessels were built in 1931-36 under the Maru 1 Keikaku.

They have two sub classes, this article handles them collectively.