Institut Le Rosey, commonly known simply as Le Rosey, is a boarding school in Rolle, Switzerland. It has 380 students aged 7 to 18. It was started by Paul-Émile Carnal in 1880 and is Switzerland's oldest private school. Royalty from around the world have been students. No more than 10% of the students are allowed to be from the same country. Students applying to be seniors must be able to work in English and French.