The Iga-ryū Ninja Museum (伊賀流忍者博物館 Iga-ryū Ninja Hakubutsukan) located in Iga, Mie Prefecture, Japan, is a museum dedicated to the history of the ninja and ninjutsu. It is located near Iga Ueno Castle.
The museum's collection includes ancient ninjutsu writings analyzed scientifically along with ancient ninjutsu weapons. The museum has audiovisuals, models and extensive static displays of the weaponry and techniques employed by ninja. There are over 400 ninja tools on display, including shuriken actually used in the time of the ninja. The museum also features a model village hosted by women in ninja costumes who assist in conducting tours and demonstrations of its features.
There is also a virtual version of the museum in Second Life.
Jinichi Kawakami, who serves as the honorary director of the Iga-ryū Ninja Museum, is proclaimed to be the 21st head of Iga-ryū ninjutsu.