The 2004 FIBA Diamond Ball was a basketball tournament held in Heraklion, Greece, from August 5 until August 8, 2004. The FIBA Diamond Ball was an official international basketball tournament organised by FIBA, held every Olympic year prior to the Olympics. It was the 1st edition of the FIBA Diamond Ball. The six participating teams were Australia, China host Greece, Brazil, Nigeria and South Korea. The United States women's team did not participate in the 2004 event although they were the then-reigning World champions and Olympic champions.