Broadstairs is a coastal town on the Isle of Thanet in the Thanet district of east Kent, England, about 80 miles (130 km) east of London. It is part of the civil parish of Broadstairs and St Peter's, which includes St Peter's, and had a population in 2011 of about 25,000. Situated between Margate and Ramsgate, Broadstairs is one of Thanet's seaside resorts, known as the "jewel in Thanet's crown". The town's coat of arms' Latin motto is Stella Maris. The name derives from a former flight of steps in the chalk cliff, which led from the sands up to the 11th-century shrine of St Mary on the cliff's summit.

The Isle of Thanet is a peninsula forming the easternmost part of Kent, England. While in the past it was separated from the mainland by the 600-metre-wide (2,000 ft) Wantsum Channel, it is no longer an island.