JS Taigei (SS-513) is the first boat of the Taigei-class attack submarine of Japan Maritime Self-Defense Force.

The submarine was ordered from Mitsubishi Heavy Industries in 2017 and laid down on 16 March 2018 at Kobe, Japan.

Taigei was laid down at Mitsubishi Heavy Industries Kobe Shipyard on 16 March 2018 as the 2017 plan 3000-ton submarine No.

It was handed over to the Maritime Self-Defense Force on 9 March 2022 and deployed to the Yokosuka Naval Base.

[5] In June 2023, the submarine participated in exercises with a visiting vessel of the French Navy, the frigate Lorraine.