| Championshipname: | WWF Junior Heavyweight Championship |
| Promotion: | World Wrestling Federation (WWF) New Japan Pro-Wrestling (NJPW) |
| Created: | 1965 |
| Mostreigns: | Johnny De Fazio (4 reigns) |
| Longestreign: | Tatsumi Fujinami (days) |
| Shortestreign: | Ryuma Go (2 days) |
| Titleretired: | October 31, 1985 |
| Pastnames: |
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The WWWF/WWF Junior Heavyweight Championship is a former championship recognized by the World (Wide) Wrestling Federation and New Japan Pro-Wrestling for wrestlers of smaller size. The title existed from 1965 through 1985.
In April 1994, the WWWF championship belt was used as a trophy for the first ever Super J-Cup, which was won by Wild Pegasus.
Over the championship's 20-year history, there were 20 reigns between 11 champions. Johnny De Fazio has the most reigns at four times. Tatsumi Fujinami's second reign it the longest at 789 days, while Ryuma Go's reign was the shortest at two days. The Cobra was the final champion.