Marymount International School
Kingston upon Thames, Surrey · KT2 7PE
Marymount International School London is an independent Catholic day and boarding school for girls aged 11–18, located in Kingston upon Thames. The school is part of the global Marymount network and offers the IB curriculum from MYP through IBDP, positioning itself as a genuinely international institution. With 48 nationalities represented, strong IB results (37 average points, 100% pass rate), and placement in the top 2% of IB schools worldwide, Marymount appeals to families seeking a rigorous, globally-minded education within a single-sex boarding environment.
- →Rigorous IB curriculum from age 11, with proven strong university outcomes and top 2% global IB ranking
- →Genuine international community (48 nationalities, 15 mother tongue languages supported) and exchange opportunities with 18 sister schools globally
- →Catholic ethos combined with inclusive, values-driven pastoral care and bespoke university counselling
- →Flexible boarding options with strong pastoral infrastructure for both day and resident pupils
Who thrives here
Marymount suits ambitious, internationally-minded girls from families valuing bilingualism, cultural diversity, and a rigorous academic curriculum. It particularly appeals to expat families, children with mother tongues other than English, and those seeking a supportive all-girls environment with a strong spiritual dimension.
Strengths at a glance
Percentiles within UK independent + grammar schools we track.
At a glance
Contact & visit
George Road
Kingston upon Thames, Surrey
KT2 7PE
Nearest stations
Frequently asked questions
What are the fees at Marymount International School?
Day fees at Marymount International School are approximately £39,540 per year (2026/27). Boarding fees are higher.
How do you get into Marymount International School?
Marymount International School admits pupils at 11+, 13+, 16+. Entry is assessed by Interview, Assessment. See the Admissions section above for open days and key dates.
Is Marymount International School a boarding school?
Marymount International School offers boarding as well as day places.
What is Marymount International School's latest inspection rating?
ISI rated Marymount International School “Excellent” (2022).
What parents say
Frequently praised
✓Genuinely international community and strong links to global Marymount network
✓Rigorous IB curriculum with excellent university outcomes and bespoke college counselling
✓Holistic approach to pastoral care, spiritual development, and girls' wellbeing
✓Supportive, nurturing environment balancing academic challenge with individual attention
✓Multilingual provision and celebration of cultural diversity
Common concerns
!Not yet inspected by Ofsted; limited independent external validation of safeguarding and standards
!Limited information on SEND provision and accessibility for girls with learning differences
!Day fees and boarding costs not publicly available; accessibility for non-international families may be limited
!Smaller pupil body (228) may limit breadth of sport and activity options compared to larger independent schools