- Name: Silent Homicide Technique (無声殺人術, Sairento Kiringu; English TV "Silent Killing Technique")
- Type: General skill
- Users: Zabuza Momochi, Kakashi Hatake, Mizuki
- Debut (Anime): Naruto Episode 7
- Debut (Manga): Chapter 12
As the name suggests, this technique is simply a very quiet method of killing an opponent, usually from behind with a blade. Additionally, because the user is very silent, it cannot be defended against. The user will often slit their opponent's throat, preventing any cry that might give them away. Zabuza was a master of this technique, and was even good enough to track and kill opponents through sound alone.
The Hidden Mist Technique was used by Zabuza in conjunction with this technique.