| St Mary's High School, Limavady Ardscoil Mhuire, Léim a' Mhadaidh | |
| Location: | 72-90 Irish Green Street, Limavady, County Londonderry |
| Country: | Northern Ireland |
| Schooltype: | Secondary |
| Established: | 1959 |
| Principal: | Rita Moore |
| Colours: | Green,White |
| Students: | 700 (approx.)[1] |
St Mary's High School is a Catholic secondary school situated in the town of Limavady, County Londonderry, title=St. Patrick's College|url=http://www.stpatrickscollege.co.uk|accessdate=27 March 2019}} and Rossmar School in the Roe Valley Learning Community. Through this partnership, the schools offer shared courses and facilities for their students.
The school initially only provided instruction for students up to GCSE level. In 1975, 'A' level provision was introduced.[2] St. Mary's now offers a full range of subjects at both GCSE and A-Level.
In 2017/2018, 73.7% of its students who sat the A-level exams were awarded three A*-C grades.[3]