Vice Admiral Mitsugu Ihara (庵原貢, Iohara Mitsugu, born 3 October 1903) was a Japanese naval officer who served as the Colonel of the Imperial Japanese Navy from 1920 to 1945 and the Vice Admiral of the Japanese Maritime Self Defence Force (JMSDF) from 1954 to 1960. He was the third commander of the Self Defense Fleet succeeding Yasumaro Kiguchi. In 1961, he was succeeded by .