A wooden katana is typically called a "bokken" in Japanese. The term "bokken" translates to "wooden sword" or "wooden blade." Bokken are commonly used in Japanese martial arts training, particularly in styles that focus on swordsmanship like Kenjutsu and Kendo.

Bokken are designed to simulate the weight, feel, and balance of a real katana while minimizing the risk of injury during training. They are typically made from solid hardwood, such as oak or hickory, and are crafted to replicate the shape and proportions of a katana. Bokken are an essential tool for practicing and developing sword techniques without the dangers associated with using a live blade.