The year 2006 was the 6th year in the history of World Extreme Cagefighting, a mixed martial arts promotion based in the United States. In 2006 WEC held 7 events beginning with, WEC 18: Unfinished Business.
WEC 18: Unfinished Business was an event held on January 13, 2006 at the Tachi Palace in Lemoore, California, United States.
WEC 19: Undisputed was an event held on March 17, 2006 at the Tachi Palace in Lemoore, California, United States.
WEC 20: Cinco de Mayhem was an event held on May 5, 2006 at the Tachi Palace in Lemoore, California, United States.
WEC 21: Tapout was an event held on June 15, 2006 at the San Manuel Indian Bingo and Casino in Highland, California.
WEC 22: The Hitmen was an event held on July 8, 2006 at the Tachi Palace in Lemoore, California, United States.
WEC 23: Hot August Fights was an event held on August 17, 2006 at the Tachi Palace in Lemoore, California, United States.
WEC 24: Full Force was an event held on October 12, 2006 at the Tachi Palace in Lemoore, California, United States.