Fighting of World Japan Pro Wrestling
| Acronym | WJ |
|---|---|
| Founded | 2002 |
| Defunct | Mid-2004 |
| Style | Puroresu |
| Founder(s) | Riki Choshu Katsuji Nagashima |
| Owner(s) | Riki Choshu Katsuji Nagashima |
| Split from | New Japan Pro-Wrestling |
| Successor | Riki Pro |
Fighting of World Japan Pro Wrestling, also known as Fighting World of Japan Pro Wrestling and frequently shortened to World Japan or WJ was a professional wrestling promotion formed in Japan in 2002 by former New Japan Pro-Wrestling employees Riki Choshu and Katsuji Nagashima, who also served as chairmen along with Tomohiro Ishii.