Petersfield is a market town and civil parish in the East Hampshire district of Hampshire, England. It is 15 miles (24 km) north of Portsmouth. The town has its own railway station on the Portsmouth Direct line, the mainline rail link connecting Portsmouth and London. Situated below the northern slopes of the South Downs, Petersfield lies wholly within the South Downs National Park.

East Hampshire is a local government district in Hampshire, England. Its council is based in the town of Petersfield, although the largest town is Alton. The district also contains the town of Bordon along with many villages and surrounding rural areas.