Ōdachi



An ōdachi (大太刀, "large great sword") is a traditional Japanese longsword. There is no standard definition for how long a sword's blade had to be to qualify as one, but typically it was somewhere around 35 inches.

's sword in Rise of the Teenage Mutant Ninja Turtles is called an ōdachi, but does not resemble any real-life sword in that class.