IWA World Heavyweight Championship (International Wrestling Enterprise)
The International Wrestling Alliance World Heavyweight Championship was a professional wrestling world heavyweight championship of the Japanese professional wrestling promotion known as International Wrestling Enterprise (Kokusai Puroresu). It was the first Japanese heavyweight title to be billed as a World title, and in the 1970s and early 1980s it was one of the most important titles in Japan. The title died with the promotion in 1981 but was later revived by Goro Tsurumi for his independent Kokusai Promotion.
| Wrestler: | Times: | Date: | Place: | Notes: |
| Billy Robinson | 1 | December 12, 1968 | Okayama, Okayama | Defeats Toyonobori in the final of 11-man round-robin tournament. |
| Thunder Sugiyama | 1 | May 19, 1969 | Sendai, Miyagi | |
| Dr. Bill Miller | 1 | March 4, 1971 | Kokura, Fukuoka | |
| Strong Kobayashi | 1 | June 19, 1971 | Duluth, MN | |
| Wahoo McDaniel | 1 | November 9, 1973 | Wakayama,Nachikatsuura | |
| Strong Kobayashi | 2 | November 30, 1973 | Tokyo | |
| Vacant | The title was vacated on February 13, 1974 when Kobayashi jumped to New Japan Pro Wrestling to challenge Antonio Inoki. | |||
| Billy Robinson | 2 | June 3, 1974 | Korakuen Hall, Tokyo | Defeats the Great Kusatsu in a tournament final. |
| Superstar Billy Graham | 1 | August 16, 1974 | Denver, CO | |
| Mighty Inoue | 1 | October 7, 1974 | Koshigaya, Saitama | |
| Mad Dog Vachon | 1 | April 10, 1975 | Tokyo,Adachi | |
| Rusher Kimura | 1 | April 19, 1975 | Sapporo, Hokkaido | |
| Vacant | Kimura vacates the title after being unsatisfied with a match (indecisive conclusion) against The Undertaker (Hans Schroeder) on April 13, 1976 in Sapporo, Hokkaido. | |||
| Rusher Kimura | 2 | April 22, 1976 | Sendai, Miyagi | Defeats The Undertaker. |
| Umanosuke Ueda | 1 | June 11, 1976 | Koga, Ibaraki | The title was held up after a match against Rusher Kimura on July 28, 1976. |
| Rusher Kimura | 3 | July 31, 1976 | Koshigaya, Saitama | Defeats Super Assassin, who replaces injured Ueda for rematch |
| Alexis Smirnoff | 1 | July 21, 1979 | Niigata,Murakami | |
| Rusher Kimura | 4 | July 25, 1979 | Mishima, Shizuoka | |
| Verne Gagne | 1 | November 13, 1979 | Niigata,Sanjō | |
| Rusher Kimura | 5 | November 16, 1979 | Wakayama, Wakayama | |
| Title abandoned | Title retired when Promotion closes on September 30, 1981. | |||