The Sword of Kusanagi (草薙の剣, Kusanagi no Tsurugi, literally meaning: Grass-Mowing Sword) may refer to:
- Sword of Kusanagi, wielded by Orochimaru.
- Sword of Kusanagi, wielded by Sasuke Uchiha.
- Sword of Totsuka, a variant of the Sword of Kusanagi wielded by Itachi Uchiha's Susanoo.
- Sword of Kusanagi: Longsword of the Sky, a ninjutsu employed by Orochimaru.
- Sword of Kusanagi: Chidori Katana, a ninjutsu employed by Sasuke Uchiha.
- Sword of Kusanagi: One-Stab Death, a game-only ninjutsu employed by Orochimaru.
- Sword of Kusanagi: Blades from All Directions, a game-only ninjutsu employed by Orochimaru.