Maricourt Catholic School, in Maghull, Merseyside, United Kingdom, formerly Mater Misericordiae Grammar School, was one of two Roman Catholic secondary schools administered by the Sisters of Mercy in Merseyside, the other being Broughton Hall, West Derby. The school celebrated its 50th anniversary in 2007 with the new headmaster Mr Brendan McLoughlin. The former headteacher Sister Mary Teresa RSM BSc was the last of the Sisters to be Head the school and ceased her duties in 2007, opting to remain as deputy chair of the Board of Governors. The school offered both GCSE and Advanced Level qualifications for male and female students.