Isamu Takeshita (?? ?, Takeshita Isamu, 5 January 1870 – 1 July 1949) was an admiral in the Imperial Japanese Navy.
He was also a diplomat whose accomplishments included helping end the Russo-Japanese War favorably for Japan and obtaining former German possessions in the Pacific for Japan following World War I.
In addition, he was a patron and practitioner of the Japanese martial arts, especially judo, sumo, and aikido.