| Windsor Girls' School | |
| Motto: | Aspire, Advance, Achieve |
| Established: | 1920 |
| Type: | Academy converter |
| Trust: | Windsor Learning Partnership UID 5544 |
| Head Label: | Headteachers |
| Head: | Peter Griffiths and Eimear O'Carroll |
| Address: | Imperial Road |
| City: | Windsor |
| County: | Berkshire |
| Postcode: | SL4 3RT |
| Local Authority: | Windsor and Maidenhead |
| Ofsted: | yes |
| Dfeno: | 868/4046 |
| Urn: | 141852 |
| Enrolment: | 778 |
| Gender: | girls |
| Lower Age: | 13 |
| Upper Age: | 18 |
| Houses: | 3 |
| Colours: | Green |
| Publication: | The Windsorian |
| Website: | http://www.windsorgirls.net/ |
Windsor Girls' School (WGS) is an upper school for girls aged 13–18 in Windsor, Berkshire, England. While most other schools in Berkshire operate on a two-tier system with pupils entering secondary school at age 11, the local LEA uses the three-tier system, hence the 13+ entry age.[1] It previously held Business & Enterprise specialist status and was rated "good, with outstanding features" by Ofsted inspectors in 2010.[2] In 2014, the school was rated outstanding. Its partner school is The Windsor Boys' School.
WGS was originally Windsor County Girls' School, a private school, during the inter-war period, founded in 1920, and later Windsor County Grammar School for Girls during the era of the tripartite system.[3] It turned comprehensive during the 1970s when the system was abolished.