Duncan MacMillan High School (DMHS) is a secondary school in Sheet Harbour, Nova Scotia, Canada. Duncan MacMillan High is the smallest high school in the Halifax Regional School Board, but it has the largest geographical area for bussing. Duncan MacMillan hosts grades 7–12 and teaches 174 students. DMHS has two feeder schools: Sheet Harbour Consolidated School, and Lakefront Consolidated School in Tangier. A third feeder school, Eastern Consolidated School, in Moser River, used to be active but it was closed in September 2015 because of very low student population issues. As of 2015-16, the school's administrative team consisted of Principal Ronnie Reynolds, Vice Principal Mike McWatters and Registrar/Guidance Counsellor Alana Hogg. In addition, there are 20 teaching staff and 12 support s