| Tadahiko Shimadzu | |
| Native Name Lang: | ja |
| Native Name: | 島津 忠彦 |
| Alma Mater: | Seikei Business school (now Seikei University) |
| Birth Date: | 30 August 1899 |
| Birth Place: | Kagoshima City |
| Office1: | Member of the House of Councillors |
| Assembly: | National Diet of Japan |
| Constituency1: | Kagoshima at-large district |
| Term Start1: | May 3rd, 1947 |
| Term End1: | June 3rd, 1956 |
| Office2: | Member of the House of Peers |
| Term Start2: | July 10th, 1939 |
| Term End2: | May 2nd, 1947 |
[1] or Tadahiko Shimadzu (Shimadzu Tadahiko) was a Japanese politician who served as a member of the National Diet.
He was born in Kagoshima City, Kagoshima Prefecture[2] and was born to the House of Shigetomi of the Shimadzu clan. His father is Baron Shimazu Sounosuke. Tadahiko became a baron by succession in 1925. Tadahiko’s younger brother was a yōga painter.[3]
Tadahiko learned at and .[4] He graduated from Seikei Business School in 1923 and worked at Mitsubishi Bank for about ten years. Then he served as the president of several companies.
He was elected to a member of the House of Peers of the Imperial Diet from barons in 1939 and he served until 1947 when the House of Peers was abolished. After World War II, he was elected to a member of House of Councillors of the National Diet from Kagoshima at-large district in 1947 election and 1950 election.[5] He was initially an independent member and later belonged to the Liberal Party and then the Liberal Democratic Party. He served as the Chairs of the Committee on telecommunications of the House of Councillors.