Hiroaki Kadoyama

is a Japanese politician of the Liberal Democratic Party, who serves as a member of the House of Representatives.

Early years In 1964, Kadoyama was born in Yamaguchi Prefecture. He then grew up in Chiba, Chiba Prefecture. After graduating from Chuo University's Faculty of Law, he took the bar examination and passed it in 1990. He completed legal training and registered as a lawyer.

After that, in 2001, he presided over the Kadoyama General Law Office and served as a full-time consultant for the Chiba City Specialized Consultation for Persons with Disabilities and president of the Chiba Junior Chamber.

In the 2014 general election, Kadoyama lost to DPJ's Tajima after a close race and won a seat in Southern Kanto PR.

In the 2017 general election, Kadoyama defeated Kibō’s Tajima after a close race and gain Chiba 1st's seat.

In 2018, Kadoyama was appointed to Parliamentary Secretary for Justice in the Fourth Abe First reshuffled cabinet.

In the 2020 LDP presidential election, Kadoyama endorsed Shigeru Ishiba as a recommender.

In the 2021 general election, Kadoyama was defeated by CDP’s Tajima and won a seat in Southern Kanto PR.

In 2022, Kadoyama was appointed to State Minister of Justice again in the Second Kishida First reshuffled cabinet.

On 31 October 2023, Kadoyama was appointed to State Minister of Justice in the Second Kishida Second reshuffled cabinet because of Kadoyama's successor Mito Kakizawa's resignation for his bribery scandal.

In the 2024 LDP presidential election, Kadoyama endorsed Ishiba as a recommender again.

In the 2024 general election, Kadoyama was defeated by CDP's Tajima and lost re-election.

In the 2026 general election, Kadoyama defeated CRA’s Tajima and gain Chiba 1st's seat.