インターレギオ・エクスプレス

Also known as Interregioexpress, Interregio Express, IRE

thumb|upright|An Interregio-Express on the Black Forest railway (Baden) at [[Singen station]] The Interregio-Express (IRE) is a train category for local public transport railway services operated by the Deutsche Bahn (DB). Until the December 2024 timetable change, it was available in the German states of Baden-Württemberg, Bavaria, Saxony, Saxony-Anhalt and Berlin, as well as on the High Rhine Railway line, which passes through Switzerland). The IRE category is since only used for the , a train that operates between Berlin and Wrocław, with other IRE services now operating as Regional-Express