Katharine Lady Berkeley's School is an academy school near Wotton-under-Edge, Gloucestershire, England, for ages 11 to 18. It has been ranked as the 4th best non-fee paying school in the South-West and 250th best in the whole country.

Katherine Berkeley, Lady Berkeley was an English benefactor and school founder in Gloucestershire. In 1384 she obtained a royal licence for a chantry school that today is called the Katharine Lady Berkeley's School. The school is said to be the first founded by a lay person, the first founded by a woman and the first to offer free education to anyone.