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For more than a century, IIL has offered students an international education of excellence, combining academic rigour and personal development.

years of education
About IIL

Institut International de Lancy (IIL) is a leading international school in Geneva balancing academic excellence with citizenship. We have a child-focused approach to learning that combines creativity with critical thinking and encourages collaboration alongside autonomy. Our school welcomes students from nursery school through secondary education, aged 3 to 19, preparing them for major certifications, including the International Baccalaureate (IB), IGCSE, Brevet des Collèges and French Baccalaureate.

Our unique language policy brings natural learning of English into the French section and that of French into the English section, building linguistic and cultural bridges throughout the school. Founded in 1903 as College Marie-Thérèse, a Catholic boarding school for girls, today the school is a non-profit association. Located on the original site, our leafy campus combines the beauty of heritage buildings with contemporary architecture and modern facilities.

With a strong emphasis on academic achievement and personal development, we give children the opportunity to develop their unique potential, building a foundation that will support them for life.

2023 Exam Results

International Baccalaureate

  • 97% pass rate 
  • Average total score 35,5 
  • 25% obtained 40 points or more 
  • 36% of students were awarded the Bilingual IB Diploma including 8% who obtained the new Advanced Bilingual IB Diploma 


  • 92% of the grades awarded were A*-C
  • 50% of graduates achieved A* or A 

French Baccalaureate

  • 100% pass rate, including 8% of congratulations 
  • Over 80% students passed with “Mention Très Bien” or “Mention Bien”

French “Diplôme National du Brevet”

  • 100% pass rate
  • Over 80% students passed with “Mention Très bien” or “Mention Bien”
Diplomas & Accreditations

IIL is an IB World School authorised to teach both the International Baccalaureate Diploma Programmes (IBDP) and the Cambridge International General Certificate in Secondary Education (IGCSE). Furthermore, the school is a Cambridge University examination centre.

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Our vision

In an ever-changing world, IIL defines itself as an innovative school that embraces new ideas based on the founding values of the Collège Marie Thérèse.

Our motto “Work and succeed together” unites and sums up the vision that animates our educational community.

We are a multicultural, diverse and international community where children can flourish, learn and develop intellectual curiosity. They are inspired by motivational teaching professionals and united around the core values of our founders, the Sisters of St Joseph of Lyon. 

We guide all learners through their schooling, encouraging compassion, respect and acceptance of differences and difficulties. 

Recognised for its academic excellence, IIL strives to make students independent, autonomous learners through collaborative pedagogical practices that leave room for new ideas and innovation. As a forward-thinking school, we nurture communicationcreativity and critical thinking.

We have the pleasure of welcoming 1,440 students, of multiple nationalities and varied academic backgrounds. We are committed to supporting each student to fulfill their academic potential and be the best person that they can be.

Whilst we attach particular importance to guiding and accompanying all students during their schooling, we also ensure that the school environment is conducive to work and success.

Between innovation and tradition, IIL offers each student a quality education adapted to his or her needs while respecting the human values it conveys.

Language approach

We are committed to promoting a plurilingual and international learning environment. Joining IIL is a chance for students to connect with a diverse, global community and to encounter a rich array of cultures and languages. From Early Years to the end of Secondary school, students follow an innovative linguistic pedagogy based on the Common European Framework of Reference for Languages, allowing them to achieve a high level of proficiency in several languages.

Digital learning

At IIL, we strive to be at the forefront of innovative and appropriate digital learning technologies. Using the latest digital learning tools and software, we encourage both teachers and students to participate in the development and improvement of education as a whole. Learner-centric, creative and engaging collaborative activities are the key to our digital learning approach. Our students use the latest tools to absorb, produce and share new content, while inventing new forms of academic and creative expression.

Teachers use digital tools to enhance the learning experienceand provide new forms of support for the children. More broadly, teachers guide students on the path towards digital literacy and becoming responsible digital citizens.

From digital art classes to coding lessons, technology shines at IIL. With this recognition, IIL was awarded the “Apple Distinguished School” certification.

Given our integrated digital learning approach, IIL was prepared to face the COVID-19 pandemic and effectively extend learning into the homes of our students. Using a variety of digital resources and intensive staff training by our IT and ICT teams, each IIL section was able to provide distance learning to students of all ages.

Eco School

As part of its long-term commitment to protecting the environment, IIL is proud to join Eco-Schools, the leading global sustainable school programme. Beginning in the classroom and expanding outwards to the community, Eco-Schools aims to engage the next generation of eco-citizens through action-based projects and learning. Our aim is to have sustainability-minded and environmentally conscious students and to engage the entire school community by working together on environmental and sustainability projects.

Students of all ages and adults working in all areas of the school learn to incorporate sustainable practices into everyday school life. The projects we currently have in place show the importance of this commitment. These projects include surveys, crafts and recycling activities. Our Eco-school Council, made up of students from all levels within the school, ensures the school community is involved in all aspects of what it means to be an Eco-school.

Anti-bullying programme

Our anti-bullying programme, KiVa, goes beyond simple conflict resolution. It is based on three pillars: prevention, intervention and monitoring. All IIL Primary and Secondary school students benefit from preventive courses based on the values of empathy, tolerance, and respect for differences. This programme extends beyond the classroom as every staff member at IIL has been trained and empowered to recognize and intervene.

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Conditions & Fees 2024/2025
Rules & Regulations 2024/2025