The 2003 Asian Basketball Confederation Championship for Men was the qualifying tournament for the Basketball Tournament at the 2004 Summer Olympics in Athens, Greece.

The tournament was held in Harbin, China from September 23 to October 1, 2003.

According to the ABC rules, each zone had two places, and the hosts (China) and the best 5 teams of the previous Asian Championship were automatically qualified.

* Withdrew,  Kazakhstan and  Kuwait were given a wild card entry into the championship.

Lebanon Uzbekistan Hong Kong Kazakhstan South Korea India Kuwait Malaysia Syria Chinese Taipei Iran China Qatar Japan Philippines Jordan