Tsutomu Tomioka (冨岡 勉, Tomioka Tsutomu, born July 4, 1948) is a Japanese doctor and politician serving in the House of Representatives in the Diet (national legislature) as a member of the Liberal Democratic Party. A native of Nakama, Fukuoka he attended Nagasaki University, earning a doctoral degree in medicine. He also attended The Eppley Institute for Research in Cancer at the University of Nebraska Medical Center in Omaha, Nebraska for two years.^[1] He was elected for the first time in 2005 after serving in the local assembly of Nagasaki Prefecture from 1999 to 2003. He is also a member of Médecins Sans Frontières, among other organizations.