Kaiichiro Suematsu (June 18, 1875 – June 26, 1947) was a Japanese politician who served as governor of Hiroshima Prefecture from September 1926 to November 1927. He was governor of Tokushima Prefecture (1915-1917), Shiga Prefecture (1923-1925) and Ibaraki Prefecture (1925-1926). He was mayor of Beppu, Ōita from 1942 to 1946.[1]