The Octagon
- Sal: 1980
- Welat: United States of America
- Genre: Adventure, Action, Thriller
- Studio: American Cinema Productions
- Keyword: martial arts, assassin, fight, revenge, ninja, vigilante, terrorism, massacre, one against many, warrior, neo-noir, action hero
- Serek: Eric Karson
- Avdan: Chuck Norris, Karen Carlson, Lee Van Cleef, Art Hindle, Carol Bagdasarian, Tadashi Yamashita