| Champion | Date Won | Location | Notes |
| Paul DeGalles | September 1965 | ||
| Johnny DeFazio | October 15, 1965 | Pittsbugh, PA | |
| Jackie Nicholas | |||
| Johnny DeFazio [2] | |||
| Jackie Nicholas [2] | |||
| Johnny DeFazio [3] | |||
| Jackie Nicholas [3] | |||
| Johnny DeFazio [4] | -a- | ||
| Carlos Jose Estrada | January 20, 1978 | Uniondale, NY | -b- |
| Tatsumi Fujinami | January 23, 1978 | New York, NY | |
| Ryuma Go | October 2, 1979 | Osaka, Japan | |
| Tatsumi Fujinami [2] | October 4, 1979 | Tokyo, Japan | -c- |
| Tiger Mask | January 1, 1981 | Tokyo, Japan | -d- |
| Black Tiger | May 6, 1982 | Fukuoka, Japan | -e- |
| Tiger Mask [2] | May 26, 1982 | Osaka, Japan | -f- |
| Tiger Mask [3] | June 12, 1983 | Mexico City, Mexico | -g- |
| Dynamite Kid | February 7, 1984 | Tokyo, Japan | -h- |
| The Cobra | December 28, 1984 | New York, NY | -i- |
| Hiro Saito | May 20, 1985 | Hiroshima, Japan | |
| The Cobra [2] | July 28, 1985 | Osaka, Japan | -j- |
-a- Nicholas' reigns have not been confirmed, and are listed according to reports on Weekly Puroresu. DeFazio vacated the title in 1972 when he retires.
-b- Defeats Tony Garea for vacant title.
-c- Vacated when Fujinami jumps up to heavyweight division in December 1981.
-d- Defeats Dynamite Kid for the vacant belt. Vacated due to injury in April 1982.
-e- Defeats Gran Hamada for vacant belt.
-f- Vacated on March 4, 1983 due to injury.
-g- Defeats Fishman for vacant belt. Vacated on August 12, 1983 when Tiger Mask retires.
-h- Defeats Davey Boy Smith on February 3, 1984 and The Cobra on February 7, 1984 to win the vacant title. Vacated in November 1984 when the Kid jumps to All-Japan.
-i- Defeated Black Tiger for the vacant belt.
-j- Vacated on October 31, 1985 when New Japan and the WWF split. Title is forgotten hereafter.
