The men's 63 kg (138.6 lbs) Semi-Contact category at the W.A.K.O. World Championships 2007 in Coimbra was the second lightest of the male Semi-Contact tournaments being the equivalent of the light welterweight division when compared to Full-Contact's weight classes. There were twenty men from three continents (Europe, Asia and North America) taking part in the competition. Each of the matches was three rounds of two minutes each and were fought under Semi-Contact rules.
As there were not enough men for a tournament designed for thirty-two, twelve of the fighters received byes through to the second round. The tournament gold medal was won by Italy's Andrea Lucchese who defeated Hungary's Viktor Hirsch in the final by points decision. Defeated semi finalists Turkey's Taskin Kahveci and Slovenia's Juvan Klemen won bronze medals.