was a Japanese politician of the Social Democratic Party, a member of the House of Councillors in the Diet (national legislature). A native of Yomitan, Okinawa and 1958 graduate of Ryukyu University, he was elected to the House of Councillors for the first time in 2007 after serving as mayor of Yomitan for six terms (24 years). Yamauchi died on 26 September 2026, aged 91.＜訃報＞元参院議員の山内徳信氏が死去 91歳 読谷村長6期、米軍補助飛行場の返還に尽力
References
External links Official website in Japanese.