Wakizashi

This traditional samurai dagger is often used as a secondary weapon to a Katana, and is great for close range combat and surprise attacks. As a secondary weapon to a Katana, they are known together as a "Daishō" (大小), literally meaning "Big-Small", with "Big" refering to a Katana and "Small" refering either to a ​Wakizashi or a Tantō (短刀).