Date of Birth: 
About Hernán Viera
- Hernán Moises Viera Espinoza (born January 16, 1993) is a Peruvian male weightlifter, competing in the 105 kg category and representing Peru at international competitions.
- He participated in the men's 105 kg event at the 2011 World Weightlifting Championships, and at the 2016 Summer Olympics, finishing in thirteenth position.
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