A muscle car spoiler is a car spoiler attached on a muscle car, which is a term for high-performance cars, primarily American models produced between 1964 and 1974. Muscle car spoilers make the vehicle unique and stand out in the crowd. Often with flashy, sporty styling, these mid-sized cars have special trims and large powerful engines (V8 engines). The special trims are intended for utmost acceleration on the street or in drag racing competition.

The muscle car models initially sported only rear spoilers. The construction of front spoilers not only enhanced the appearance, but also added functionality in terms of aerodynamic design. The muscle car spoilers, both frontal and rear spoilers, are usually molded into the bumper caps. This arrangement helps to reduce the car