Такэда Сингэн
was a Japanese samurai of the Sengoku period, who was the younger brother of Takeda Shingen, the ruler of Kai Province. He is known as one of the "Twenty-Four Generals of Takeda Shingen". Nobutatsu also served under Shingen's son, Takeda Katsuyori. He fought at Nagashino in 1575.