Iain Lewers (born 5 January 1984) is a field hockey player from Northern Ireland who represented Ireland, England and Great Britain at international level. He represented Great Britain at the 2012 and 2016 Summer Olympics. He was also a member the England teams that won bronze medals at the 2011 Men's EuroHockey Nations Championship and 2014 Commonwealth Games. He also represented England at the 2013 and 2015 Men's EuroHockey Nations Championships and at the 2014 Men's Hockey World Cup. In both 2014 and 2015 Lewers was named the England/Great Britain Player of the Year by the Hockey Writers' Club.