Portsmouth [pɔːtsməθ] is a port city on the south coast of England in the county of Hampshire in the United Kingdom of Great Britain and Northern Ireland. It is mostly on the island of Portsea Iceland at the mouth of the Solent in the English Channel. is located on the sheltered west coast of Portsmouth Harbor, located on the east Langstone Harbor. South of the city is separated by the Solent from the Isle of Wight.