Winterbourne Junior Girls' School is a primary school based in Thornton Heath under the Croydon local authority.

The school educates girls pupils aged 7 to 11. It currently has 255 pupils on roll with space for 328, offering a broad curriculum across all primary year groups.

The most recent Ofsted inspection, published on 8 May 2024, rated the school Outstanding. Inspectors highlighted the overall quality of education and the strong relationships between staff and pupils.