Daizō Nozawa (野沢 太三) is a politician of Japan who served as the Justice Minister of Japan from 2003 to 2004. Nozawa graduated from the University of Tokyo with a bachelor of civil engineering degree and joined Japanese National Railways in 1956. During his career at JNR, he obtained the degree of Ph.D. He was first elected as a member of the House of Councillors in 1986. He served as a member of the house until 2004 when he did not run for reelection. Currently, he is the leader of the Japan-Korea Tunnel Research Institute, an organization trying to create a tunnel link between Japan and South Korea.