The 1983 FIBA Under-19 World Championship (Spanish: 1983 Campeonato Mundial FIBA Sub-19) was the 2nd edition of the FIBA U19 World Championship. It was held in Palma de Mallorca, Spain from 14 to 28 August 1983. The United States successfully defended their championship by winning the Gold Medal against the Soviet Union in the final day of the tournament, 82-78.