An airbrush is a small, air-operated tool that atomizes and sprays various media, most often paint, but also ink, dye, and foundation. Spray painting developed from the airbrush and is considered to employ a type of airbrush.

Spray painting is a painting technique in which a device sprays coating material through the air onto a surface. The most common types employ compressed gas—usually air—to atomize and direct the paint particles.