Tadcaster Grammar School founded in 1557, is a coeducational secondary school and sixth form located near Tadcaster, North Yorkshire, England, educating children aged 11–18 years old, and has an on-site sixth form. The school is located in the hamlet of Toulston just outside the brewery town of Tadcaster. The school's catchment includes Tadcaster and its surrounding villages, while traditionally taking pupils from the York area, including villages such as Appleton Roebuck, Copmanthorpe, Bishopthorpe and Bilbrough.

Tadcaster is a market town and civil parish in North Yorkshire, England, 15 miles (24 km) north-east of Leeds and 10 miles (16 km) south-west of York. Its historical importance from Roman times onward was largely as the lowest road crossing-point on the River Wharfe until the construction of the A64 Tadcaster by-pass some 660 yards (600 m) to the south, in 1978. There are two rail crossings downstream of the town before the Wharfe joins the River Ouse near Cawood.