'Rot-Grün' was a German unrealised contingency plan for a two-front war primarily with France and Czechoslovakia but secondarily with the UK, Poland and Lithuania should these countries also become involved (1937).

A melding of the 1937 definitive iterations of the 'Rot' (i) and 'Grün' (i), 'Rot-Grün' was focused primarily on the defeat of Czechoslovakia and probably France.