Ertl is a former American manufacturing company and current brand of toys, best known for its die-cast metal alloy collectible replicas of agricultural machinery. Other products manufactured by Ertl include cars, airplanes, and commercial vehicles.

A die-cast toy is a toy or a collectible model produced by using the die-casting method of putting molten lead, zinc alloy or plastic in a mold to produce a particular shape. Such toys are made of metal, with plastic, rubber, glass, or other machined metal parts. Wholly plastic toys are made by a similar process of injection molding, but the two methods are distinct because of the properties of the materials.