The Fiat 125 is a large family car manufactured and marketed by Italian company Fiat from 1967 to 1972. Derivatives were built under license outside Italy until the 1990s. As launched the car was unusual in blending saloon car passenger accommodation with sports car performance, a combination which would be more widely adopted by the European volume auto-makers in the decade ahead.

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