St Mary's Church of England VA Primary School, Welham Green is a voluntary aided school located in Hatfield, within the Hertfordshire 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 4 to 11. It currently has 157 pupils on roll with space for 210, offering a broad curriculum across all primary year groups.

Ofsted last inspected the school on 18 March 2025, awarding it a Good rating. The report noted positive aspects of leadership, safeguarding and the school’s approach to pupil development.