Takeshi Miyaji (宮路 武, Miyaji Takeshi, December 22, 1965 – July 29, 2011) was a Japanese video game developer who founded the development companies Game Arts (with his brother Yoichi Miyaji) and G-Mode. He was best known as the creator of the Silpheed, GunGriffon, Lunar and Grandia video game series. His work on the Lunar and Grandia series in particular had a major influence on the development of role-playing video games. He was the younger brother of Game Arts' CEO Yoichi Miyaji.