Mirror Lake is an unincorporated community in the town of Tuftonboro in Carroll County, New Hampshire. It is located along the shore of Mirror Lake in the Lakes Region of New Hampshire. The village is located in the southern part of the town of Tuftonboro, and is adjacent to Lake Winnipesaukee as well as Mirror Lake. New Hampshire Route 109 passes through the village, connecting Wolfeboro to the east and Melvin Village and Moultonborough to the west.