|Olympic medal record|
|Competitor for Luxembourg|
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.
- "Joseph Alzin Olympic Results". sports-reference.com. Retrieved 2013-09-07.
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