Victoria Square is a public square on the Isle of Portland, Dorset, England. Developed in the 19th century, it is situated at the entrance to Portland, close to Chesil Beach, Osprey Quay, and the small fishing village of Chiswell.

The Isle of Portland is a tied island, 6 kilometres (4 mi) long by 2.7 kilometres (1.7 mi) wide, in the English Channel. The southern tip, Portland Bill, lies 8 kilometres (5 mi) south of the resort of Weymouth, forming the southernmost point of the county of Dorset, England. A barrier beach called Chesil Beach joins Portland with mainland England. The A354 road passes down the Portland end of the beach and then over the Fleet Lagoon by bridge to the mainland. The population of Portland is 13,417.