Immaculate Conception Apostolic School is a private boarding school located in Center Harbor, New Hampshire. It was founded in 1982, and it is an all boys school that starts at grade 7 to grade 12.

The ICAS is also considered to be a high school seminary. They use a Liberal arts model to teach their students, and they are affiliated with the Roman Catholic Church. There are a lot of social aspects that The Immaculate Conception Apostolic School offer their students a well. They have a basketball team, a soccer team, a hockey team, and a baseball team. They also offer quite a few different outdoor activities like boating, hiking and swimming to help pass the time for their boarders, as well.