What is a straight katana and how does it differ from a standard katana?
Updated Feb 2026
A straight katana refers to a Japanese sword built in the katana style - with a tsuba guard, wrapped ito handle, and matching lacquered scabbard - but featuring a straight or near-straight blade rather than the curved profile that defines the standard katana. The standard katana's curve, known as sori, developed gradually through Japanese sword-making history as smiths found that a curved blade was more effective for mounted use and drawing techniques than a straight one. Straight blades predate this development and remain associated in Japanese sword culture with earlier continental Asian influences, the chokuto lineage, and the ninjato tradition associated with the shinobi. For collectors, a straight katana offers the familiar and aesthetically appealing fittings of a katana - the tsuba guard, wrapped handle, and scabbard - paired with the geometric simplicity and visual directness of a straight blade. This combination is particularly popular in anime-inspired designs, where many fictional swords in the Japanese style feature straight blades for visual clarity and distinctiveness.