The Champion Carnival is a professional wrestling tournament held by All Japan Pro Wrestling (AJPW). The tournament is also known by the nickname Haru no Saiten and is sometimes abbreviated to CC. Created by AJPW founder Giant Baba, the tournament has been held annually since 1973 and is the longest-running singles tournament in professional wrestling, while also ranking as the most prestigious event in the AJPW calendar. It is considered a successor to the World League, held by Japan Pro Wrestling Alliance (JWA) between 1959 and 1972, predating the New Japan Pro-Wrestling (NJPW) G1 Climax tournament by a year.

All Japan Pro Wrestling (AJPW/AJP) or simply All Japan is a Japanese professional wrestling promotion established on October 21, 1972, when Giant Baba split away from the Japanese Wrestling Association and created his own promotion. Many wrestlers had left with Baba, with many more joining the following year when JWA folded. From the mid-1970s, All Japan was firmly established as the largest promotion in Japan. As the 1990s began, aging stars gave way to a younger generation including Mitsuharu Misawa, "Dr. Death" Steve Williams, Kenta Kobashi, Gary Albright, Toshiaki Kawada, Mike Barton, Akira Taue and Jun Akiyama, leading to perhaps AJPW's most profitable period in the 1990s.