Kazuhiko Aoki

is a Japanese politician who served as Deputy Chief Cabinet Secretary from 2024 to 2025.

After an earlier career working for a television broadcasting company, he entered the field of politics, serving as secretary to his politician father Mikio Aoki from 1999. In 2010 he succeeded his father as a member in the House of Councillors for the Shimane at-large district. A member of the Liberal Democratic Party, Aoki was re-elected to the House in July 2016 as the member for the merged Tottori-Shimane at-large district. He is affiliated to the revisionist lobby Nippon Kaigi.

Early life and pre-political career Aoki was born in the town of Taisha (now a part of Izumo city) in Shimane Prefecture on 25 March 1961. His father Mikio Aoki is a veteran politician within the prefecture, having served five terms in the from 1967 to 1986 before representing the prefecture in the House of Councillors in the national Diet for four consecutive terms from 1986 as a member for the Shimane at-large district.

Aoki attended in Shimane and graduated from Waseda University with a bachelor's degree in education in 1985. After graduating he joined the Fuji Television before moving to the San-in Chūō Television Broadcasting company in Shimane a year later. In February 2013 he became a director of the House's Budget Committee. He retained the role in Abe's next cabinet that was formed after the December 2014 House of Representatives election, but was replaced during a shuffle in October 2015.

In July 2015 Aoki was one of six LDP Councillors from rural districts who were opposed to the party's policy of merging smaller districts to address the problem of vote malapportionment. Aoki and the other Councillors exited the House before a vote on a bill that merged Aoki's Shimane district with the neighbouring Tottori at-large district, the two smallest districts in the country, amongst other changes to district representation.

2016 re-election campaign Following the 2015 electoral reform intended to address disproportion in voter representation, Aoki's Shimane district was merged with the neighbouring Tottori at-large district to create the Tottori-Shimane at-large district. Tottori was represented by Kazuyuki Hamada, who was elected in 2010 as an LDP candidate but defected to an opposing party a year later. As the only incumbent LDP member in the new district, Aoki received the party's nomination to contest the newly merged district at the July 2016 election and an endorsement from Komeito, the LDP's junior coalition partner. In the election Aoki received 62.7% of the vote to defeat Hirohiko Fukushima, a nominally independent candidate who was jointly endorsed by the main opposition parties.