Wrestling World 2003 was a professional wrestling event held by New Japan Pro-Wrestling (NJPW). The event took place on January 4 in the Tokyo Dome. It was the twelfth January 4 Tokyo Dome Show promoted by NJPW. The show drew 30,000 spectators.[1]
The show featured the semi-finals and the finals of the "Young Generation Cup", an NJPW tournament for relative newcomers who have yet to establish themselves as top level wrestlers, which saw Ryushi Yanagisawa defeat Yutaka Yoshie to win the cup. The show featured a total of eleven matches, including a match for the vacant NWF Heavyweight Championship that Yoshihiro Takayama won by defeating Tsuyoshi Kosaka in the finals of a four-man tournament. The main event was a successful defense of the IWGP Heavyweight Championship as champion Yuji Nagata defeated Josh Barnett.