Tomegorō Yoshizumi (吉住 留五郎, Yoshizumi Tomegorō, 9 February 1911 – 10 August 1948) was a Japanese spy and journalist who defected to Indonesia during the National Revolution. Born in Tōhoku region during the late stages of the Meiji period, in his early twenties he joined the Japanese expatriate community in the Dutch East Indies. Yoshizumi recruited locals for the Japanese spy ring in Java and Sulawesi, while also taking up employment for local Japanese newspapers. He was a noted follower of Japanese nationalism, and reportedly endorsed a "new order in East Asia". Although a civilian, he was inducted into the Imperial Japanese Navy, earning an officer's rank.