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Marymount International School London is a small, independent Catholic day and boarding school for girls aged 11 to 18, fully committed to the academic, emotional, spiritual, and social development of its students.

Established in 1955 by the Religious of the Sacred Heart of Mary (RSHM), to meet the needs of families in the international business and diplomatic community, the school embraces and embodies the RSHM Mission “that all may have life”. Marymount welcomes girls of all nationalities and religious traditions, providing a unique environment of cultural exchange and understanding.

In 1979, the Marymount International School London was the first girls' school in the United Kingdom to adopt the International Baccalaureate (IB) Diploma program. This was a daring decision reflecting remarkable educational foresight thus enabling the school to meet the needs of its students: empowering them to become independent, critical thinkers and active, lifelong learners. The pursuit of knowledge interlaced with a keen sense of social justice reflects the IB philosophy and Catholic values at the very heart of their Community. Students of Marymount graduate to the finest universities in the world and stand out as confident, compassionate and courageous thinkers who are the leaders of tomorrow.

In preparation for the IB Diploma, Marymount teaches the Middle Years Program (MYP) which has a holistic structure fostering creativity, rigorous self-assessment and personal development.

Marymount London is a member of the Girls' School Association, the Boarding Schools Association and the Independent Schools Council. It is accredited by the Middle States Association of Schools & Colleges (USA) and the Council of International Schools and inspected in the UK by the Independent Schools Inspectorate (ISI).

Marymount’s beautiful campus sits on an exclusive private estate, in the heart of the idyllic Surrey countryside, just a stone’s throw from central London.

All Programs Available:
  • Education
    • Secondary Education
    • Elementary Education
Language of instruction


Type of school

Primary or Secondary School


+44 (0) 208 949 0571


George Road, Kingston upon Thames, Surrey, The United Kingdom, KT2 7PE


Council of International Schools (CIS) and the Middle States Association of Colleges and Schools (MSA). We are also a member of, and inspected by, the Independent Schools Council in the UK. We are a member of the Girls' Schools Association (GSA) and the Boarding Schools Association (BSA).