Prince Henry's Grammar School, also known as Prince Henry's or PHGS, is a secondary school and sixth form established in 1607 in the market town of Otley, West Yorkshire, England. The school teaches boys and girls between the ages of 11 and 18 and has around 1,400 pupils and 84 teachers. It retains a high position within regional league tables. In 2016, Prince Henry's had the third highest results for GCSEs in Leeds. Also in 2016, PHGS was the best state school in Leeds for A Level results. The school has repeatedly received a 'good' rating from Ofsted with outstanding features, however has in the past received criticism for the state of the old school building. Despite the name, Prince Henry's is now a state-funded academy school.

Otley is a market town and civil parish at a bridging point on the River Wharfe, in the City of Leeds metropolitan borough in West Yorkshire, England. Historically a part of the West Riding of Yorkshire, the population was 13,668 at the 2011 census. It is in two parts: south of the river is the historic town of Otley and to the north is Newall, which was formerly a separate township. The town is in lower Wharfedale on the A660 road which connects it to Leeds.