In the 2006–07 NHL season, Kunitz improved to 25 goals and 60 points. He went on to help the Ducks advance through the playoffs, past the Minnesota Wild, Vancouver Canucks, and Detroit Red Wings, en route to a Finals victory against the Ottawa Senators to capture both his and the franchise's first Stanley Cup championship. Kunitz had been injured during the semi-finals against the Red Wings, but returned late in the Stanley Cup Finals against Ottawa to help clinch the championship in game five.