A car's wheel alignment is the position of the wheels in relation to the body of the car. It affects how the car handles and how it rides. The wheel alignment is an important part of a car's suspension system.

Most cars have four-wheel alignment, which means that all four wheels are aligned. Wheel alignment is often confused with wheel balancing. Wheel balancing deals with the weight of the tire and wheel combination. Balancing does not affect how the car handles or rides.