The Peugeot 407 is a large family car (D-segment) produced by the French automaker Peugeot, from 2004 to 2011. It was available in saloon, coupé and estate variants, with both diesel and petrol engines. The petrol engines range from 1.8 to 3.0 liters displacement, whereas the diesels range from 1.6 to 3.0-liter engines.

The D-segment is the 4th category of the European segments for passenger cars, and is described as "large cars".