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St Mary's School Ascot

St Mary's Road, South Ascot, SL5 9JF

Independent school for ages 11–18 in South Ascot. Girls intake, Roman Catholic.

St Mary's School Ascot is a Roman Catholic independent boarding school for girls aged 11 to 18 in Ascot, within Windsor and Maidenhead. It has a sixth form and around 380 pupils.

The school describes itself as Catholic, girls', full boarding, small and academic, set in 55 acres with the chapel at the heart of community life. It says boarding life offers co-curricular opportunities and support beyond the teaching day.

Its January 2025 ISI inspection found standards and safeguarding standards met; the A-level average grade was A-, and 41.2% achieved AAB or better in two or more facilitating subjects.

Ages 11–18 · Secondary age
384 pupils · On roll
Independent school · Girls

Open days and visits at St Mary's School Ascot

Verified on the school’s website

Dates below were read from the school’s own pages. Use the source link to check the latest details.

Read from the school’s own website and kept up to date. Schools change dates without notice — always confirm on their page before you travel.

Primary applications close on 15 January 2027; secondary applications close on 31 October 2026. Sign in and create a planner to keep the deadline and school visits together. See Windsor and Maidenhead’s deadlines and how to apply →