| St Mary's School | |
|---|---|
| Location | |
 | |
| , , SP7 9LP England | |
| Coordinates | 51°00′22″N 2°09′54″W / 51.006°N 2.165°W |
| Information | |
| Type | Private day and boarding school |
| Motto | Ad Maiorem Dei Gloriam To the Greater Glory of God |
| Religious affiliation(s) | Roman Catholic |
| Established | 1945 |
| Founder | Institute of the Blessed Virgin Mary |
| Closed | 2020 |
| Local authority | Dorset |
| Ofsted | Reports |
| Chair of governors | V Younghusband[1] |
| Head teacher | Maria Young[1] |
| Gender | Girls |
| Age | 9 to 18 |
| Colour(s) | Green |
| Publication | The Beech Tree |
| Diocese | Plymouth |
| Website | http://www.stmarys.eu/ |
St Mary's School was a private Roman Catholic day and boarding school for girls, founded in 1945 in a rural setting near Shaftesbury, England. The school had a sixth form and was a member of the Girls' Schools Association. After operating at a loss for some time, the school closed in July 2020.
Although the school's postal address was in Dorset, its site lay just over the county border in Wiltshire, within the parish of Donhead St Mary.