1986 ad for Intercity.

InterCity (commonly abbreviated IC on timetables and tickets) is the classification applied to certain long-distance passenger train services in Europe. Such trains (in contrast to regional, local, or commuter trains) generally call at major stations only.

The term originated in the United Kingdom, with the InterCity sector of British Rail. Following the privatisation of the railways in Great Britain the term is no longer in official use there, although many people still refer to fast long-distance services as InterCity trains.

The German Bundesbahn first used the name (then written Intercity) in 1968, denominating special first-class services on the F train network. Many of the Class VT 11.5 diesel multiple units formerly used on the TEE network were converted for early Intercity services.

In Switzerland, the InterCity replaced the SwissExpress with the 1982 schedule.

An international variant of the InterCity are the EuroCity (EC) trains which were introduced in May 1987. EuroCity trains consist of high-standard, air conditioned coaches and are usually subject to on-board border controls. EuroCity trains are run by a variety of operators, for example EuroCity trains running in Germany can be made up by rolling stock of either the SBB (Switzerland), ÖBB (Austria) and the SNCF (France), but also less commonly by the Czech ČD and the Hungarian MÁV.