Blackfriars station, also known as London Blackfriars, is a central London railway terminus and London Underground complex in the City of London. Its platforms span the River Thames a short distance downstream from Blackfriars Bridge. The north bank entrance is on the south side of Queen Victoria Street close to the junction with New Bridge Street. A new entrance on the south bank opened on 5 December 2011. The station is in Travelcard Zone 1. The Underground station was closed for major engineering for nearly three years from March 2009. It reopened on 20 February 2012.

The mainline railway station was opened as St Paul's by the London Chatham and Dover Railway (LC&DR) on 10 May 1886 when it opened the St Pauls Railway Bridge across the River Thames.

The St Paul's bridge was constructed to supplement the LC&DR's existing Blackfriars railway bridge, which had opened in 1864. This carried trains on the LC&DR's busy City Line from south London into the LC&DR stations at Ludgate Hill, Holborn Viaduct and, via the Snow Hill tunnel and a connection to the Metropolitan Railway near Farringdon, on to London King's Cross and St Pancras stations.