Lee-on-the-Solent, often referred to as Lee-on-Solent, is a seaside district of the Borough of Gosport in Hampshire, England, about five miles (8 km) west of Portsmouth. The area is located on the coast of the Solent. It is primarily a residential area, with an upsurge of mostly local visitors in summer, but was also the former home to the Royal Naval Air Station HMS Daedalus.

Gosport is a town and non-metropolitan borough, on the south coast of Hampshire, South East England. At the 2021 Census, its population was 81,952. Gosport is situated on a peninsula on the western side of Portsmouth Harbour, opposite the city of Portsmouth, to which it is linked by the Gosport Ferry. Gosport lies south-east of Fareham, to which it is linked by a Bus Rapid Transit route and the A32. Until the last quarter of the 20th century, Gosport was a major naval town associated with the defence and supply infrastructure of His Majesty's Naval Base (HMNB) Portsmouth. As such over the years extensive fortifications were created.