The Hofpleinlijn (Spoorlijn Rotterdam Hofplein - Scheveningen) was one of the two railways between the Dutch cities of The Hague and Rotterdam. In 2006 it was converted to metro-like operation as RandstadRail line E.
The Zuid-Hollandsche Electrische Spoorweg-Maatschappij (ZHESM) company was founded in 1900 to build electric railway lines in the province of South Holland. Their first railway line connected Den Haag Hollands Spoor station with the sea side resort of Scheveningen. This line opened with steam locomotives on May 1, 1907, and was electrified in 1908. Its second line connected The Hague with Rotterdam. It opened in 1908, and was the first electrified railway line in the Netherlands (using world-unique 10 kV 25 Hz voltage, in 1926 changed to Netherlands standard 1500 V). The terminus in Rotterdam was Rotterdam Hofplein station, which gives the line its name.
In Rotterdam, connecting curves to the main railway towards Rotterdam Delftsche Poort and from 1951 also towards Rotterdam Noord Goederen existed, but nevertheless the Hofpleinlijn had only local significance. In 1953 the line to Scheveningen closed. The line between The Hague and Hofplein was converted to metro-like operation in 2006. Hofplein station was closed in 2010, when a tunnel connected the line to the Rotterdam Metro at Rotterdam Central Station.