Iccho Itoh (伊藤 一長, Itō Itchō^?, August 23, 1945 – April 18, 2007), born Kazunaga Itō (伊藤 一長, Itō Kazunaga^?), was the mayor of the Japanese city of Nagasaki; he first took office in 1995. He was a graduate from Waseda University, and majored in political science.

He served as a member of the city assembly and later the prefectural assembly before he was elected as the mayor. As the mayor of the city where an atomic bomb was dropped just two weeks before his birth, he made a speech at the International Court of Justice in the Hague on November 7, 1995 and stressed that the use of nuclear weapons is a violation of international law.^{[citation needed]}

On April 17, 2007, while campaigning for re-election for his fourth term, he was shot twice in the back at point-blank range in front of his campaign office outside the Nagasaki train station. Itoh was taken to the Nagasaki University Hospital, where he died early the next morning due to loss of blood. Police arrested Tetsuya Shiroo on suspicion of the murder after he was detained by Itoh's entourage following the shooting. Shiroo was a senior member of the Yamaguchi-gumi, an organized crime group. As for the motive, "Shiroo reportedly clashed with Nagasaki city officials in 2003 after his car was damaged when he drove into a hole at the construction site." There are also rumours that it is related to city construction projects. The Nagasaki District Court sentenced Shiroo to death on May 26, 2008, but the Fukuoka High Court revoked the death sentence.