In Japanese sword craftsmanship, a menuki refers to a small decorative element or ornament that is traditionally attached to the handle (tsuka) of a Japanese sword, such as a katana. Menuki are usually symmetrical and come in pairs, with one on each side of the handle.

Menuki serve both aesthetic and functional purposes. They provide a visual accent to the handle, enhancing its overall appearance and adding personalization to the sword. Menuki can be crafted from various materials, including metals like copper, brass, or silver. They are often intricately designed and may depict various motifs such as animals, plants, mythical creatures, or historical symbols.

Functionally, menuki serve as grip aids, providing a subtle contour and texture to improve the wielder's hold on the sword. The menuki, along with other handle components such as the wrap (tsukamaki) and the hilt collar (fuchi), contribute to the overall balance, comfort, and control of the sword during use.

Menuki reflect the craftsmanship and attention to detail in Japanese sword-making. They are an essential part of the traditional aesthetic and cultural significance associated with the art of swordsmithing and the appreciation of Japanese swords.