Manabu Sakai (?? ?, Sakai Manabu, born September 4, 1965) is a Japanese politician of the Liberal Democratic Party, a member of the House of Representatives in the Diet (national legislature).
A native of Fuchu, Tokyo and graduate of the University of Tokyo, he was elected for the first time in 2005.
He is in the 2nd term from December 2012.
His election area is Yokohama city, Kanagawa Prefecture, in Japan.
Now he is Deputy Minister, the Ministry of Land, Infrastructure, Transport, and Tourism.