Vice Admiral Kaji Masakazu 鍜治雅和 is a Japanese former Maritime Self Defense officer.
- Chief, Operation Section, Operations and Plans Department, Maritime Staff Office.
- 27 Mar 2006, Rear Admiral. Chief of Staff, Fleet Escort Force.
- 3 Jul 2007, Commander, Escort Flotilla 3.
- 1 Dec 2008, Inspector, Inspector General Office of Legal Compliance.
- 7 Dec 2009, Chief of Staff, Kure District.
- 27 Apr 2011, Superintendent, JMSDF 1st Service School.
- 22 Aug 2013, Vice Admiral. Commander, Fleet Submarine Force.
- 4 Aug 2015, retired.