The West Rookie King Tournament (西日本新人王, Nishinihon Shinjin-ō) is a yearly event held in Osaka, Japan among Class C licensed boxers.
Class C licensed boxers are boxers that are allowed to fight four round matches. The tournament consists of four round matches until the finals, which is a six round match. Winners of the West Japan Rookie King Tournament are able to face against the East Japan Rookie King in the All Japan Rookie King Tournament.
