| Term | Kanji | Description |
| Babulien | 八步连 | Kata: Chinese; Eight Repeated Steps. AKA Happoren Paipuren |
| Baduanjin | 八段錦 | Kata: Qigong - Eight Step Brocade / aka 8 pieces of silk brocade |
| Baka | 馬鹿 | Fool, Idiot, Stupid, a Trivial Matter |
| Bakemono | 化物 | A type of Yokai that can shapeshift |
| Banzai | 万歳 | Expression of joy. Literally translates to 10,000 years old! |
| Bisento | 眉尖刀 | Eye Shaped Halberd - Cavalry Weapon - Thicker than Naginata |
| Bo | 棒 | Hardwood staff roughly 6 ft in length |
| Bodhidharma | 菩提達磨 | Indian Monk responsible for Zen Buddhism (approx 500-580) |
| Boshi Uchi | 母指打ち | Thumb Strike |
| Budo | 武道 | War/Warrior Way - Established with 7 virtues - Way of Life |
| Bujutsu | 武術 | War/Warrior Arts |
| Bunkai | 分解 | Disection, to break a kata apart move by move for analysis |
| Busaganashi | ブザーガナシー | See Tian Du Yuan Shuai - Bukami 武神 (God of Military Arts) |
| Bushi | 武士 | Warrior |
