|vervoerder=DB Regio NRW
|dienstregeling=2015
|traject=[[Aachen Hbf]] - [[Köln Hbf]] - [[Düsseldorf Hbf]] - [[Duisburg Hbf]] - [[Essen Hbf]] - [[Dortmund Hbf]] - [[Hamm (Westf.)]] (- [[Paderborn Hbf]])|materieel=[[Baureihe 146]] + [[Dosto]]|frequentie=1x/(uur|opmerkingen=Rijdt tussen Hamm en Paderborn 1x/2) uur. Stopt in de late avond/'s nachts op alle stations tussen Dortmund Hbf en Hamm.
}}
De '''RE1''' is de [[Regional-Express]]-verbinding tussen [[Aachen Hbf]], [[Köln Hbf]], [[Düsseldorf Hbf]], [[Essen Hbf]], [[Dortmund Hbf]] en [[Paderborn Hbf]].
{{TreinRouteRij | {{BRimg|rleal}}{{Rimg|rsr}} | Nordbögge}}
{{TreinRouteRij | {{Rimg|rsIC0}}{{Rimg|rsICr}}{{Rimg|rsIC0}} | Hamm (Westf.)}}
{{TreinRouteRij | {{Rimg|rer}}{{Rimg|rsICr}} | Soest | Soest (D)}}
{{TreinRouteRij | {{Rimg|rer}}{{Rimg|rsICr}} | Lippstadt}}
{{TreinRouteRij | {{Rimg|rer}}{{Rimg|rsIC0}} | Paderborn Hbf}}