Montessori High School at University Circle (also known as MHS) is a private high school located in the University Circle neighborhood of Cleveland, Ohio. The school opened August 2008 as the first private high school in the United States with the Montessori name, and was the first Montessori high school to offer boarding for students. The campus includes three mansions converted into classrooms and rooms for boarding students. MHS combines Montessori education with the International Baccalaureate program, one of three to do so in the United States.