The Portsmouth Direct line is a railway route between Woking in Surrey and Portsmouth Harbour in Hampshire, England. It forms the principal route for passenger trains between London, Guildford and Portsmouth; connections are made to the ferry services which operate between Portsmouth and the Isle of Wight. The final section of line from Havant to Portsmouth is shared with other passenger routes.

Woking railway station is a major stop in Woking, England, on the South West Main Line used by many commuters. It is 24 miles 27 chains (39.2 km) down the line from London Waterloo. The station is managed by South Western Railway, who operate all trains serving it.