CAF Reichshoffen, formerly De Dietrich Ferroviaire (DDF) is a French manufacturer of railway rolling stock and operated by CAF France, based in Reichshoffen, France.

[1] It was formed as a division of the De Dietrich group, which has a history going back to 1684.

DDF were part of the consortium which constructed the rolling stock for the Eurostar service from London in the United Kingdom through the Channel Tunnel to Paris, France and Brussels, Belgium.

The Reichshoffen plant is also to produce hydrogen trains for the French Grand Est region.

In July 2020, the French manufacturer Alstom announced that it was ready to sell the Alstom DDF plant in Reichshoffen, Alsace to CAF in order to finalise the takeover of Bombardier's railway activities.