Fiat  Automobile is the largest automobile manufacturer in Italy, a subsidiary of FCA Italy S.p.A., which is part of Fiat Chrysler Automobiles. Fiat Automobiles S.p.A. was formed in January 2007 when Fiat reorganized its automobile business, and traces its history back to 1899 when the first Fiat automobile, the Fiat 4 HP, was produced.

During its more than century-long history Fiat remained the largest automobile manufacturer in Europe and the third in the world after General Motors and Ford for over twenty years, until the car industry crisis in the late 1980s. Fiat has also manufactured railway engines, military vehicles, farm tractors, aircraft, and weapons such as the Fiat–Revelli Modello 1914.

Fiat Automobiles has received many international awards for its vehicles, including nine European Car of the Year awards, the most of any other manufacturer, and it ranked many times as the lowest level of CO2 emissions by vehicles sold in Europe.