|Type Rapid transit|
|System Frankfurt U-Bahn|
|Locale Frankfurt am Main, Oberursel|
Termini Frankfurt South station Hohemark
The U3 is a line on the Frankfurt U-Bahn. At the time of the line's inauguration in 1968, it ran from the south railway station to the Hauptwache and then continued along the Eschersheimer Landstrasse all the way up to Heddernheim and then continued to their terminus in Oberursel.