K-1 Grand Prix '99 Final Round was a martial arts event promoted by the K-1 organization. It was the seventh K-1 World Grand Prix final involving eight of the world's best fighters, with all bouts fought under K-1 Rules. The eight finalists had all qualified via elimination fights at the K-1 World Grand Prix '99 Opening Round. Also on the card was a number of 'Freshman Fights' and an 'Opening Fight' fought under a mixture of Jiu-Jitsu and K-1 Rules (various weight class) and two 'Super Fights' fought under K-1 Rules (various weight classes). In total there were twenty fighters at the event, representing eight countries.