The Three Great Spears of Japan are three individual spears that were made and crafted by the greatest historical blacksmiths of Japan:
- Tonbogiri (蜻蛉切): A spear, also known as the "Dragonfly Cutting Spear", once wielded by Honda Tadakatsu, one of the great generals of Tokugawa Ieyasu.
- Nihongo, or Nippongo (日本号): A famous spear that was once used in the Imperial Palace. Nihongo later found its way into the possession of Masanori Fukushima, and then Tahei Mori. It is now at The Fukuoka City Museum where it was restored.
- Otegine (御手杵)