The 1985–86 Calgary Flames season was the sixth season in Calgary and 14th for the Flames franchise in the National Hockey League (NHL). It was a banner season for the Flames, who overcame a franchise record eleven game losing streak to finish 2nd in the Smythe Division and captured the franchise's first Clarence S. Campbell Bowl as Campbell Conference champions. In doing so, they became the first Calgary team to reach the Stanley Cup Finals since the Calgary Tigers in 1923–24. The Flames season ended at the hands of the Montreal Canadiens, who defeated Calgary in five games in the final.