Magnus Church of England Academy often abbreviated as 'Magnus', is a British secondary school located in the market town of Newark-on-Trent, in Nottinghamshire, England. It was founded as a grammar school by the 16th-century English diplomat and cleric Thomas Magnus; the original school building, located in Appletongate by the church, is now a small museum.

Newark-on-Trent or Newark is a market town and civil parish in the Newark and Sherwood district in Nottinghamshire, England. It is on the River Trent, and was historically a major inland port. The A1 road bypasses the town on the line of the ancient Great North Road. The town's origins are likely to be Roman, as it lies on a major Roman road, the Fosse Way. It grew up round Newark Castle, St Mary Magdalene church and later developed as a centre for the wool and cloth trades.