Mark Dacey (born June 22, 1966) is a Canadian curler originally from Saskatchewan. He was based at the Mayflower Curling Club in Halifax, Nova Scotia. Dacey is a former Canadian men's curling champion skip, having won the 2004 Nokia Brier. He defeated Randy Ferbey's team, ending their 3-year Brier winning streak. Dacey went on to win a bronze medal at the 2004 Ford World Curling Championship.