St Mary's is a Roman Catholic secondary school and sixth form with academy status (since November 2016) located in Wallasey, Wirral, England.

There are numerous pastoral systems in place in SMC which care for a student's college life.

Every student in the school is placed into one of six houses which are named after saints or prominent Catholic figures.

The building programme also addressed all of the accommodation shortfalls highlighted in the Ofsted report of March 2002.

The buildings include 19 classrooms (16 general and 3 Design and Technology), larger PE changing rooms, expanded and upgraded office/reception areas, improved access for students with limited mobility, three refurbished laboratories, and more dining room space.