"Senshi" (戦士) is Japanese for "soldier", "warrior", "guardian", or "fighter". It may also refer to:
- Brandon Silvestry, a professional wrestler better known by his ring names Low Ki, Kaval and Senshi.
- Sailor Senshi, a fictional group of heroines from the Pretty Guardian Sailor Moon franchise.
- A skilled gun user, as used in the Japanese anime/manga Grenadier - The Senshi of Smiles
- Dennō Senshi Porygon a Pokémon episode notorious in having caused seizures in over 630 viewers.