Bōgu , properly called kendōgu , is training armour used primarily in the Japanese martial art of kendo, with variants used for jūkendō, tankendo, and naginata.

Kendo is a modern Japanese martial art, descended from kenjutsu, that uses bamboo swords (shinai) as well as protective armor (bōgu). It began as samurai warriors' customary swordsmanship exercises, and today it is widely practiced within Japan and has spread to many other nations across the world.