The World Junior Alpine Skiing Championships 2005 were the 24th World Junior Alpine Skiing Championships, held between 23–27 February 2005 in Bardonecchia, Italy.
| Downhill | Rok Perko | 1:25.58 | Christopher Beckmann | 1:25.78 | Erik Fisher | 1:26.40 | |
| Super-G | Michael Gmeiner | 1:25.20 | Rok Perko Gareth Sine | 1:25.25 | Not awarded | ||
| Giant Slalom | Michael Gmeiner | 2:10.28 | Florian Scheiber | 2:10.55 | Stefan Guay | 2:10.85 | |
| Slalom | Filip Trejbal | 1:24.10 | Mattias Hargin | 1:24.74 | Beat Feuz | 1:25.02 | |
| Combined | Tim Jitloff | 37.53 points | Kjetil Jansrud | 39.20 | Florian Scheiber | 42.84 | |
| Downhill | Nadia Fanchini | 1:28.84 | Elena Fanchini | 1:28.95 | Katrin Triendl | 1:29.61 | |
| Super-G | Andrea Fischbacher | 1:26.81 | Nadia Fanchini | 1:26.90 | Elena Fanchini | 1:27.06 | |
| Giant Slalom | Nadia Fanchini | 2:21.34 | Brigitte Acton | 2:21.64 | Michaela Kirchgasser | 2:21.73 | |
| Slalom | Šárka Záhrobská | 1:23.97 | Kathrin Zettel | 1:24.33 | Ana Jelušić | 1:25.19 | |
| Combined | Kathrin Zettel | 35.54 points | Resi Stiegler | 57.86 | Sophie Splawinski | 74.29 |