Pride Bushido 9 was a mixed martial arts event held by Pride Fighting Championships. This event held the quarterfinal and semifinal rounds of the first ever Welterweight tournament and Lightweight tournament. It took place at the Ariake Coliseum in Tokyo, Japan on September 25, 2005. The finals for the welterweight tournament as well as the lightweight tournament was held at Shockwave 2005 later that year on New Year's Eve. This event was awarded Sherdog's 2005 Event of the Year.