Serhiy Romanchuk (Ukrainian: Сергій Романчук; Russian: Сергей Романчук; born 6 June 1982) is a Ukrainian-born professional strongman competitor and national champion powerlifter.

[2] On Dec. 18, 2010 he won the Strongman Champions League event in Kyiv, Ukraine.

[4] This victory qualified him for the 2011 World's Strongest Man contest.

He is a 2 time UPO Ukrainian National Powerlifting Champion in 2007 & 2012.

[1] Following the 2014 Russian aggression against Ukraine, Romanchuk stayed in Makiivka where he heads a local sports club "Medvedi" (Bears).