Osami Nagano (永野 修身, Nagano Osami?, June 15, 1880 – January 5, 1947) was a Japanese career naval officer and fleet admiral in the Imperial Japanese Navy from 1934. He was more of an administrative officer than a sea commander. From April 1941 to February 1944, he was chief of the Imperial Japanese Navy General Staff.
Read more about Osami Nagano: Biography, Naval Career