Collège Alpin International Beau Soleil, known informally as Beau Soleil, is a private boarding school in Switzerland. Founded in 1910 by Madame Bluette Ferrier, it is located 1,350 metres (4,430 ft) above sea level on the Swiss Alps of Villars-sur-Ollon. The college provides a full boarding education for students aged 11–18 years old from 50 countries.

Beau Soleil has been listed by The Daily Telegraph as "One of the most exclusive schools in the world". It has been described by L'Illustré as the most expensive school in the world. L'Illustré also noted "Le risque du cocon" (the risk of the cocoon) for pupils who may not have enough experience of the outside world; and that the school values innovation. It has repeatedly been listed as one of the world's leading 150 schools and one of the top 10 in Switzerland by The Schools Index first being added to the Index in its inaugural edition in 2020.