Kogatana

Weapon type

Type of Weapon	Blade
Type of Weapon in Kanji	小刀
Type of Weapon in Rōmaji	Kogatana
Weapon name
Name in Kanji	小刀
Name in Rōmaji	Kogatana
Wielder(s)
Wielder(s)	Leonardo
Appearance(s)
Appearances(s)	2012 series

[Source]

The kogatana is a small traditional samurai dagger (like a tantō but smaller) typically used as a secondary weapon to a katana. It is often hidden within the bindings of a katana's saya (scabbard) and is great for close range combat and surprise attacks.

In TMNT[]

2012 TV series[]

In the 2012 TV series, the kogatana is a small, slim, short dagger used by the Ninja Turtles. The ones used by the Ninja Turtles are light, straight, and perfect for throwing. According to the concept art of Leonardo's katana, Niten Ryu, a kogatana (miniature katana) is concealed within the saya's (scabbard's) binding wrappings, and a tantō blade is concealed within the hilt of the daito (long sword), all as secondary, auxiliary weapons to his katana.