The Midhurst Railways were three branch lines which were built to serve the market town of Midhurst in the English county of West Sussex. The three lines were the Petersfield Railway, from Petersfield; the Mid-Sussex Railway extended by the Mid-Sussex and Midhurst Junction Railway, from Hardham Junction (Pulborough); and from Chichester. The Petersfield Railway opened in 1864, the promoting company having been absorbed by the London and South Western Railway (LSWR) in 1863. The Mid-Sussex lines reached Midhurst in 1866, after being absorbed by the London, Brighton and South Coast Railway (LBSCR) in 1862. The two lines did not connect, and there were two separate stations close by one another. The Chichester line took much longer to complete, and was opened in 1881, and a new LBSCR station was opened, replacing the first station. In 1925 the former LSWR line was connected to that station.

Chichester is a cathedral city and civil parish in West Sussex, England. It is the only city in West Sussex and is its county town. It was a Roman and Anglo-Saxon settlement and a major market town from those times through Norman and medieval times to the present day. It is the seat of the Church of England Diocese of Chichester, with a 12th-century cathedral.