| Regional School Unit 57 | |
| Coordinates: | 43.5833°N -116°W |
| Superintendent: | Larry Malone |
| Asst Superintendent: | Stephen Marquis |
| Accreditation: | --> |
| Enrollment: | --> |
| Colours: | --> |
Regional School Unit 57 (RSU 57), formerly known as Maine School Administrative District 57 (MSAD 57), is a school district in Maine. The district office is located in Waterboro, Maine, next to Massabesic High School. Its current superintendent is Dr. Stephen Marquis.
RSU 57 is in charge of the seven schools in the district, its buses, and the athletic fields:
| School | Location | |
|---|---|---|
| Alfred Elementary School | Alfred | |
| Line Elementary School | Limerick and Newfield | |
| Lyman Elementary School | Lyman | |
| Shapleigh Memorial School | Shapleigh | |
| Waterboro Elementary School | Waterboro | |
| Massabesic Middle School | Waterboro | |
| Massabesic High School | Waterboro |
RSU 57 offers a selection of programs for students as well as adults, such as:
RSU 57 programs a local educational access channel, Massabesic TV, which is seen on Time Warner Cable channel 16 and MetroCast channel 2 within the district area.