Tantojutsu (短刀術) is a Japanese term for a variety of knife fighting systems.
A tanto (短刀?, "short blade") is one of the traditionally made Japanese swords (nihonto) that were worn by the samurai class of feudal Japan. The tanto dates to the Heian
period, when it was mainly used as a weapon but evolved in design over the years to become more ornate. Tanto were used in traditional martial arts (tantojutsu) and saw a resurgence of
use in the West in the 1980s as the design made its way to America and is a common blade pattern found in modern tactical knives.