Ken'ichi Kumagai

was a Japanese bureaucrat and politician. A career official of the Home Ministry and related wartime agencies, he served as Governor of Okayama Prefecture and Yamaguchi Prefecture, as the 27th Director-General of the Hokkaidō Agency, and after the war as a member of the House of Representatives from Fukuoka 1st district.

Early life and education Kumagai was born in October 1895 in Fukuoka Prefecture. He then became head of the Cabinet Intelligence Bureau and later chief of the Social Bureau of the Health and Welfare Ministry.

On 21 April 1945 Kumagai was appointed the 27th Director-General of the Hokkaidō Agency, his tenure as lasting until 26 October 1945.

After the war, Kumagai worked as a lawyer and later served as administrative affairs chief of the policy research council of the Liberal Party.

Death Kumagai died on 9 October 1956 while still a sitting member of the House of Representatives.