St Swithun's Catholic Primary School is a primary school based in Southsea under the Portsmouth local authority.

St Swithun's Catholic Primary School caters for mixed pupils from 2 to 11 years. With 354 pupils enrolled and a capacity of 351, the school provides a structured and balanced curriculum aligned with national expectations.

The most recent Ofsted inspection, published on 25 February 2025, rated the school Outstanding. Inspectors highlighted the overall quality of education and the strong relationships between staff and pupils.