The World Junior Alpine Skiing Championships 2003 were the 22nd World Junior Alpine Skiing Championships, held between 4–8 March 2003 in Briançonnais, France.
| Downhill | Daniel Albrecht | 1:09.49 | Sergey Komarov | 1:09.79 | Marc Berthod | 1:09.85 | |
| Super-G | François Bourque | 1:17.10 | Sergey Komarov | 1:17.29 | Mario Scheiber | 1:17.31 | |
| Giant Slalom | Daniel Albrecht Mario Scheiber | 2:02.72 | Not awarded | Philipp Schörghofer | 2:02.74 | ||
| Slalom | Marc Berthod | 1:33.74 | Daniel Albrecht | 1:34.07 | Lucas Senoner | 1:34.13 | |
| Combined | Daniel Albrecht | 2.01 points | Lucas Senoner | 44.47 | Christian Flaschberger | 68.30 | |
| Downhill | Tamara Wolf | 1:12.23 | Lindsey Kildow | 1:12.45 | Julia Mancuso | 1:12.85 | |
| Super-G | Julia Mancuso | 1:20.02 | Brigitte Acton | 1:20.78 | Kelly VanderBeek | 1:20.87 | |
| Giant Slalom | Jessica Lindell-Vikarby | 2:05.70 | Lene Løseth | 2:06.41 | Maria Riesch | 2:06.84 | |
| Slalom | Michaela Kirchgasser | 1:38.53 | Ana Jelušić | 1:38.82 | Resi Stiegler | 1:39.37 | |
| Combined | Maria Riesch | 25.68 points | Michaela Kirchgasser | 39.03 | Resi Stiegler | 41.61 |