Welcome to a new school year - please find our return to school COVID-19 information here.

The International School of Lausanne gives children the tools and knowledge to succeed

Founded in 1962, the International School of Lausanne is a non-profit, English-language, International Baccalaureate (IB) World School. We welcome students from 3 to 18 years of age. We are the only IB World School in the Lausanne area offering the IB Primary Years, Middle Years, and Diploma Programmes.
Dual language: English and French

Discover ISL’s new Dual Language Programme in the Primary School

This academic year we have introduced a new dual language programme in the Primary School, for students in Years 4 and 5. Explore the reasons why this programme would be valuable for your child.

Key facts

Student body and staff

  • 900


  • 75


  • 135


After ISL

Success and outcomes

Our students leave with a sense of unlimited opportunity. They have the self-knowledge, confidence, and ambition to achieve their goals and make a positive contribution.

  • 38.07

    Mean achieved by ISL IB Diploma candidates in 2021

  • 33.2

    Mean achieved by IB candidates worldwide in 2021

  • 97.65 %

    ISL students who passed the IB Diploma in 2021