The WAR International Junior Heavyweight Championship was a title contested for in the Japanese professional wrestling promotion Wrestle Association R (WAR), which closed in 2000. It was part of New Japan Pro Wrestling's short-lived J-Crown Championship in 1996 and 1997. The title was revived in April 2010, for Genichiro Tenryu's Tenryu Project promotion.
| Wrestler: | Times: | Date: | Location: | Notes: |
|---|---|---|---|---|
| Gedo | 1 | March 26, 1995 | Tokyo, Japan | Defeated Lionheart in a tournament final to become the first champion. |
| Lionheart | 1 | June 4, 1995 | Tokyo, Japan | |
| Último Dragón | 1 | July 28, 1995 | Tokyo, Japan | |
| Gedo | 2 | August 29, 1995 | Shizuoka, Japan | |
| Último Dragón | 2 | October 5, 1995 | Oomiya, Japan | |
| The Great Sasuke | 1 | August 5, 1996 | Tokyo, Japan | The championship becomes one of eight championships comprising New Japan Pro Wrestling's J-Crown Championship. |
| Último Dragón | 3 | October 11, 1996 | Osaka, Japan | |
| Jushin Liger | 1 | January 4, 1997 | Tokyo, Japan | Won the title at Wrestling World 1997. |
| Yuji Yasuraoka | 1 | June 6, 1997 | Tokyo, Japan | Wins only the WAR championship; Liger retains the other seven titles. |
| Masao Orihara | 1 | January 15, 1999 | Tokyo, Japan | |
| Masaaki Mochizuki | 1 | March 1, 1999 | Tokyo, Japan | |
| Title abandoned | 2000 | Title was abandoned when WAR closed. | ||
| Pentagon Black | 1 | July 27, 2006 | Tokyo, Japan | Wins the title from Mochizuki. |
| Masaaki Mochizuki | 2 | November 23, 2006 | Osaka, Japan | |
| Title abandoned | January 26, 2007 | Tokyo, Japan | ||
| Title revived | April 19, 2010 | Tokyo, Japan | Mochizuki defends the belt against Susumu Yokosuka and Naoki Tanisaki on the first Tenryu Project show. |
|
| Tiger Shark | 1 | June 9, 2010 | Tokyo, Japan | |
| HIROKI | 1 | September 29, 2010 | Tokyo, Japan | |
| Ryuji Hijikata | 1 | December 14, 2010 | Tokyo, Japan | |