UFC 25: Ultimate Japan 3 was a mixed martial arts event held by the Ultimate Fighting Championship on April 14, 2000 at the Yoyogi National Gymnasium in Tokyo, Japan.
The event was the third UFC event to be held in Japan. UFC 25 was headlined by a legendary Middleweight Title Bout between Tito Ortiz and Wanderlei Silva, held to determine the Middleweight Champion following Frank Shamrock's retirement from the UFC.
The event featured the first UFC appearance of future UFC Middleweight Champion Murilo Bustamante, as well as PRIDE fighter Ikuhisa Minowa.
UFC 25 was initially seen live on pay per view. Many years later, UFC 25 was finally released as part of a DVD collection (UFC 21-30).