The DRG Class 37 was a class of German steam locomotives with 2-6-0 wheel arrangements operated by the Deutsche Reichsbahn and may refer to the following:

Class 37.0-1: Prussian P 6 Class 37.1-2: PKP Class Oi1 Class 37.2: LBE G 6 Class 37.3: ČSD Class 344.0 Class 37.4: PKP Class Oi101