PRIDE Fighting Championships was a Japanese mixed martial arts promotion company. Its inaugural event was held at the Tokyo Dome on October 11, 1997. Pride held more than sixty mixed martial arts events, broadcast to about 40 countries worldwide. PRIDE was owned by the holding company Dream Stage Entertainment (DSE).

Most rule sets for mixed martial arts (MMA) competitions have evolved since the early days of Vale Tudo. As a result of health, legal, and moral concerns, many different rulesets were created, which give different countries and promotions very different tactics and strategies. Similarly, shoot wrestling organizations, such as Shooto, expanded their rulesets to integrate elements of Vale Tudo into their sport. However, for the most part, fighters accustomed to one rule set can easily acclimate to the others.