Vice Admiral Baron Yuzuru Hiraga (?? ?, Hiraga Yuzuru, March 8, 1878 – February 13, 1943) was a career naval officer in the Imperial Japanese Navy, Doctor of Engineering and head of the engineering school of Tokyo Imperial University and a leading Japanese naval architect in the 1910s and 1920s, responsible for designing a number of famous warships, many of which would later see action during World War II.
He participated in establishing the Chiba Institute of Technology from 1941.