The announcement came shortly after Molson Coors and SABMiller said they had agreed to merge their US brewing operations.
Hunter is credited with playing a key part in the growth of Carling lager in the UK between 1996 and 2005, after having joined the marketing department of Bass Brewers in 1989.
His role expanded into exports after Coors bought Bass in 2002. After Coors merged with Molson, he moved to Canada to oversee sales and marketing there as chief commercial officer.
Hunter said: “I am very honoured to have the opportunity to lead Coors Brewers at a very exciting time for the company. The company has a great brand portfolio and great people who are driving enormous change. My focus will be building on this strong base for the future.
Molson Coors chief executive Leo Kiely said: “Mark has extensive knowledge of and insight into the UK market. His keen sense of how to market brands in different cultures and his strategic thinking ability will be key to our Europe and Asia business.”