St Mary's Catholic First School, Dorchester is a primary school based in Dorchester under the Dorset local authority.

The school educates mixed pupils aged 2 to 9. It currently has 174 pupils on roll with space for 183, offering a broad curriculum across all primary year groups.

The school continues to operate in line with national standards for teaching, leadership and safeguarding, with a clear focus on supporting pupils’ progress and wellbeing.