Back Interregio Czech Interregio German InterRegio Spanish InterRegion French InterRégió Hungarian Treno interregionale Italian 인터레기오 Korean InterRegio LB InterRegio LMO InterRegio Dutch
 | This article relies largely or entirely on a single source. (November 2022) |
The InterRegio, often shortened to IR, is a train category for mainly domestic train services in use in some European countries, with Swiss Federal Railways operating the most dense network. InterRegio trains are semi-fast long-distance trains with more stops and usually lower prices than more upscale long-distance trains such as the InterCity (IC).