Upwey is a suburb of Weymouth in south Dorset, England. The suburb is situated on the B3159 road in the Wey valley. The area was formerly a village until it was absorbed into the Weymouth built-up area. It is located four miles north of the town centre in the outer suburbs. In the Census 2001 the combined population of Upwey and neighbouring Broadwey was 4,349.

Weymouth is a sea-side town and civil parish in the Dorset district, in the ceremonial county of Dorset, on the English Channel coast of England. Situated on a sheltered bay at the mouth of the River Wey, 11 km (7 mi) south of the county town of Dorchester, Weymouth had a population of 53,427 in 2021. It is the third-largest settlement in Dorset after Bournemouth and Poole. The greater Weymouth urban area has a population of 72,802.