Mercy College is an all-girls Catholic voluntary Secondary School in Sligo with a co-educational Aonad[2] under the trusteeship of CEIST.
The school traces its origins to 1846 when members of the order of Sisters of Mercy came to Sligo.
In 1849, they established Scoil Phadraig Naofa which grew rapidly in numbers.
Over the years new buildings and sports facilities have been added.
[3] The Aonad Loch Gile is an all-Irish stream within the college.