Groton-Dunstable Regional High School (GDRHS) is located in Groton, Massachusetts and serves the communities of both Groton and Dunstable in the Groton-Dunstable Regional School District. While GDRHS is the only public high school located within those communities students from Groton may also attend the public Nashoba Valley Technical High School while students from Dunstable may attend the public Greater Lowell Technical High School. Approximately 850 students attend GDRHS and they are primarily graduates of Groton-Dunstable Regional Middle School.