Nobutaka Machimura (町村 信孝, Machimura Nobutaka, 17 October 1944 – 1 June 2015) was a Japanese politician. He was a member of the House of Representatives of Japan and a member of the Liberal Democratic Party. He was Chief Cabinet Secretary in the government of Prime Minister Yasuo Fukuda from 2007 to 2008 and twice Minister for Foreign Affairs, in the cabinets of Junichiro Koizumi and Shinzō Abe. He resigned as the Speaker of the House of Representatives on 21 April 2015 after suffering from a stroke.
Machimura was born on 17 October 1944. He attended the University of Tokyo and Wesleyan University in the United States.
Machimura was elected to his first term in the House of Representatives in the December 1983 election, and he was re-elected in each election since. He became Minister of Education, Science, Sports and Culture on 11 September 1997, as part of Prime Minister Ryutaro Hashimoto's second cabinet, and became State Secretary for Foreign Affairs on 31 July 1998, in Keizō Obuchi's first cabinet. In March 2000, he became Special Advisor to the Prime Minister, serving under Obuchi and his successor, Yoshirō Mori. On 5 December 2000, he became Minister of Education, Science, Sports and Culture and Director-General of the Science and Technology Agency, before becoming Minister of Education, Culture, Sports, Science and Technology on 6 January 2001.