| Intro | Weightlifter |
| Was |
Athlete Weightlifter |
| From |
France Luxembourg |
| Type | Sports |
| Gender | male |
| Birth | 18 December 1893, Paris |
| Death |
2 September 1930, Marseille (aged 36 years) |
Joseph Alzin (18 December 1893 – 2 September 1930) was a Luxembourgian weightlifter, competing at the Summer Olympics for Luxembourg in 1920 and the 1924 Summer Olympics. He won the silver medal at the 1920 Olympics in the heavyweight (+82.5 kg) weightlifting.