The Fiat 519 was a model of car produced by Italian automotive company, Fiat between 1922 and 1927.

2,411 were produced in total. Approximately 25 are known worldwide, of which one is a genuine 519S and three others are shortened 519s. Three have the pointed 519S radiator and the other two are flat.

There are nearly 1,600 nickel plated parts on a Fiat 519 chassis.

There is a Fiat 519 in the collections of the Museo Nazionale dell'Automobile in Turin.