Siarhei Lahun (May 27, 1988 – April 22, 2011[1]) was a Belarusian weightlifter.
At the 2007 World Weightlifting Championships he ranked 10th in the 77 kg category, with a total of 342 kg.[2]
He competed in Weightlifting at the 2008 Summer Olympics in the 77 kg division finishing tenth with 349 kg. This beat his previous personal best by 4 kg.
He died in a car crash on 23 April 2011. In this crash, the lifter Yauheni Zharnasek (BLR) also suffered severe injuries.
He was 5 ft 8 inches tall and weighed 88 kg (194 lb).