Vice Admiral (ret.) Tani Katsuji 谷勝治 is a Japanese former Maritime Self Defense officer.
- Rear Admiral.
- 1 Apr 1993, Chief of Staff, Kure District.
- Chief, J1, Joint Staff Council.
- 1 Jul 1997, Vice Admiral. President, JMSDF Command and Staff College.
- 31 Mar 1999, Vice Chief of Staff, Maritime Self-Defense Force.
- 30 Mar 2000, Commandant, Kure District.
- 27 Mar 2001, Commander-in-Chief, Self Defense Fleet.
- 22 Mar 2002, retired.