Isuzu was a Nagara-class light cruiser. Uraga launched her on 29 October 1921, and she was completed on 15 August 1923. By 1944 she had spent years as a destroyer-squadron flagship and then as an escort.
On 25 October 1944 she was in the screen of Ozawa's Northern Force off Cape Engaño. Aircraft damaged her slightly. She was not sunk. Akizuki and Hatsuzuki, in that same screen, were.
On 7 April 1945 the submarines Gabilan and Charr sank her. The loss is not credited to one of them.
