Kennebunk High School is a public high school located in Kennebunk, Maine, United States. It is part of Maine Regional School Unit 21 for the towns Arundel, Kennebunk and Kennebunkport. The school currently has 692 students enrolled. In 1982–83 and in 1990–91, Kennebunk High School was named a National Blue Ribbon School. It is currently a First Amendment School. Starting in the 2008–09 school year, Kennebunk High School became an International Baccalaureate school.