Marymount International School
School summary
Founded in 1955, Marymount International School is a small girls' school in Kingston upon Thames offering both day and boarding places for pupils aged 11 to 18. With roughly 250 pupils and a pupil-to-teacher ratio of about five to one, classes are intimate and teaching is closely tailored. The International Baccalaureate sits at the heart of the curriculum, giving the school a distinctly international outlook. Inspectors from the ISI judged the school excellent, including for pupils' personal development, and all compliance standards were met.
Where every mark matters.
Places are limited and demand is high, so exam performance is what sets candidates apart. Passmate turns the months ahead into ten focused minutes a day on the exact topics this school tests.
Free month · No payment needed
Inspection reports
- ISI rating
- excellent
- ISI personal development
- excellent
- Last inspected
- 14 October 2025
Teaching & academics
Marymount follows the IB rather than A-levels, an approach that suits families looking for a broad, internationally recognised qualification and a globally minded education. The unusually low pupil-to-teacher ratio of around five to one allows considerable individual attention, and a Middle Years Scholarship is available. Notably, close to a fifth of pupils receive some form of SEN support, suggesting a setting prepared to work closely with a range of learners.
Headmistress · Mrs Margaret Giblin
Sixth form
- Sixth-form pupils
- 80
Qualifications offered
Beyond the classroom
Sport features prominently, with tennis, volleyball, badminton and soccer among the main offerings. The sixth form, around 80 pupils strong, gives older students a focused community in which to prepare for university.
Main sports
School life & ethos
- Founded
- 1955
- Religious character
- None
- Boarding
- Yes
- SEN support
- 21.89%
- EHC plans
- 0%
Mobile phone policy
Electronic devices (including but not limited to mobile phones, iPads, and laptops) may only be used during the school day if permission has been given by a staff member. Grades 9-12 students may use their mobile phones only during break and scheduled lunchtime. However, the use of technology is not permitted in the dining hall, and mobile phones are not permitted in the library. Grades 6-8 students must hand in their mobile phones to reception as they arrive in the morning. Grades 9-12 students are encouraged to hand in their phones at the start of the day or keep them locked in their locker/boarding room.
Fees & bursaries
- Day fees (per year)
- £37,140
- Boarding fees (per year)
- £60,180 - £62,880
Schools nearby
Rokeby School
Kingston, Greater London
Holy Cross Preparatory School
Kingston, Greater London
Canbury School
Kingston upon Thames, Greater London
The Rowans School
Wimbledon, London, Greater London
Kingston Grammar School
Kingston upon Thames, Greater London
Berrylands School
Kingston upon Thames, London
Watch Passmate decide how to teach.
Answer as a child would. Left: what they see. Right: what it learns about them.
A small, internationally focused girls' school for families drawn to the IB and the option of boarding. Fees are substantial, reaching up to £37,140 for day pupils and £62,880 for boarders.
That’s where Passmate comes in. Tutoring is the most effective thing in a child’s preparation - a well-tutored child can outperform the vast majority of their peers. Passmate works alongside your tutor, not instead of them: it learns how your child thinks, finds the gaps, and shows the tutor exactly where to spend each session - so the limited time you have lands on what actually decides a place.
Works alongside your child’s tutor - not instead of them.
Free month · No payment needed
Marymount International School 11+: frequently asked questions
Compiled from public data. Last checked 5 June 2026.