Expressway R37 () is an expressway in eastern Bohemia. Currently, it connects the most important cities in the eastern Bohemia: Hradec Králové and Pardubice.
None of these sections are signed as an expressway right now.
As of 2006, it has:
19.3 km between Hradec Králové and Pardubice (5 km 4 lanes, 14.3 km 2 lanes) 2.2 km in Pardubice 4.5 km under construction south of Pardubice 12.7 km in planning 44.2 km considered