St Margaret Mary's Catholic Junior School is a voluntary aided school located in Liverpool, within the Knowsley local authority. The school plays an important role in the local community and forms part of the state funded education system in England.

The school educates mixed pupils aged 7 to 11. It currently has 465 pupils on roll with space for 480, offering a broad curriculum across all primary year groups.

Ofsted last inspected the school on 13 March 2024, awarding it a Outstanding rating. The report noted positive aspects of leadership, safeguarding and the school’s approach to pupil development.