Massabesic High School, Pronounced "MASS-UH-BEE-SIK" is a public high school located in Waterboro, Maine, United States. The school is part of the RSU 57 school system, which serves six southwestern Maine towns with a combined population of approximately 22,000 residents: Alfred, Limerick, Lyman, Newfield, Shapleigh and Waterboro.The school is divided into 2 separate buildings: the West building which serves most of the students in grades 10-12, and the East building (sometimes referred to as the Freshman Academy) which serves grade 9 and some students in grades 10-12 including special ed classes.HistoryThe name Massabesic came from a Native American language that was spoken in the area of the High School before Europeans settled in the area. Massabesic High School was first opened in 1969 with an enrollment of over nine-hundred students within the grades of 9 through 12. Over the years, the student population increased to its enrollment of around 1000 studentsThe East Building expansionOn August 29, 2007, Massabesic High School occupied the former Massabesic Junior High School building to open the East Building which expanded the high school, eliminating overcrowding issues.The east building contains all of the freshman, the foreign language department and the N.J.R.O.T.C. program. It is also the adult education center for RSU 57.