Founded in 1955, Marymount International School London is a leading independent day and boarding school for girls aged 11–18, located just twelve miles from central London. As the first all-girls’ school in the UK to adopt the International Baccalaureate (IB) curriculum, Marymount offers the IB Middle Years Programme (MYP) and Diploma Programme (DP), providing students with a globally recognised, academically rigorous education. Rooted in the values of the Religious of the Sacred Heart of Mary (RSHM), the school welcomes students from a diverse range of faiths and cultural backgrounds.

Consistently achieving results significantly above the global IB Diploma points average and ranked among the top 1% of IB schools worldwide, Marymount nurtures curious, motivated and ambitious learners. Small class sizes and a stimulating teaching environment ensure students are appropriately challenged while developing confidence, independence and critical thinking skills. The MYP encourages interdisciplinary learning across broad subject groups, while the Diploma Programme prepares students for leading universities worldwide through six academic subjects and the IB Core, including Theory of Knowledge, the Extended Essay and CAS (Creativity, Activity and Service).

Set within a beautiful seven-acre garden campus, Marymount provides exceptional facilities, including a STEAM Hub, Sports Hall, Dance Studio, tennis courts and an all-weather pitch. Flexible boarding options — full, weekly and flexi — support students from the UK and abroad, with Heathrow and Gatwick airports both within easy reach. Combining academic excellence with holistic development, Marymount empowers young women to thrive intellectually, socially and globally, preparing them for success at university and beyond.