Shoeburyness (also called "Shoebury") is a town in southeast Essex, England, at the mouth of the Thames Estuary. It is within the borough of Southend-on-Sea, situated at its far east, around 3 miles (5 km) east of Southend town centre. It was an urban district of Essex from 1894 to 1933, when it became part of the county borough of Southend-on-Sea.