The Coradia is a family of high-performance rolling stock, manufactured by Alstom Transport and offered in various configurations to suit the varying requirements of operators.

The Coradia uses Alstom's own Onix IGBT traction system, which is promoted as providing smooth acceleration and energy conservation facilities.

Amongst the options available for customisation are equipment such as vending machines, in-train ticketing dispensers, and built-in internet provision; specialised accessibility facilities for disabled passengers can also be installed.

Developed for German and other European markets, the Continental complies with the International Union of Railways (UIC) loading gauge standard and is suitable for platform heights of 550–760 mm (22–30 in).

[1] The Coradia Nordic is a wider body train, specifically developed for the large gauge standard commonly used in Northern Europe, and is available in configurations of four, five or six-carriage EMUs.

[1] The Coradia LINT, originally designed by Linke-Hofmann-Busch before its acquisition by Alstom, is a diesel-powered light train, somewhat similar to the Siemens Desiro and Bombardier Talent.

[1] The propulsion system of the LINT features a diesel powerpack mounted to the underframe of the carriage to maximise space in the low-floor section.

[1] In May 2014, the Régiolis train was introduced by the ARF (Association of French Regions), SNCF and Alstom at the Vaugirard station in Paris.

It was introduced in 2002, and has been ordered by Hamburger Hochbahn (for agilis),[9] DB Regio,[10] Metronom and Hessische Landesbahn (HLB).

[1] In May 2014, Alstom delivered the first of 24 modernised Lints to Germany's Lower Saxony State public transit authority Landesnahverkehrsgesellschaft Niedersachsen (LNVG).

[1] During December 2015, Hessische Landesbahn placed a €160m contract for 30 Coradia Continental EMUs, these are intended to be run on the Südhessen-Untermain network.

[1] In September 2012, Alstom received a €67 million order from Ferrovie Nord Milano (FNM) for ten additional Coradia Meridian regional trains.

[1] The Coradia has been used by Trenord for RegioExpress (RE) and for Malpensa Express service with the airport configuration Convoglio Servizio Aeroportuale (CSA).

Coradia Stream trains are operated by Trenitalia, Trenord, Ferrotramviaria, Trasporto Ferroviario Toscano and TUA.

The Coradia Stream model ordered is 160 meters long, has a passenger capacity of 352, and can only run on Romania's 27kV ~ 50 Hz AC network.

To re-enter service with GWR in 2025 [17] Canada was the first county in North America to operate Coradia trains, with OC Transpo in Ottawa deploying six diesel Coradia LINTs on the O-Train Trillium line in 2015 to replace the previous Bombardier Talent trains, and have subsequently also been used on the airport branch line since 2025.

The private Charlevoix Railway, in Québec, temporarily operated hydrogen based iLINTs as a demonstration in the summer of 2023.

[26] Alstom began deliveries of fifteen four-car Coradia Polyvalent trainsets for the Train Express Regional between Dakar and the Blaise Diagne International Airport in Senegal in late 2018.