The Alfa Romeo 1900 is an automobile produced by Italian car manufacturer Alfa Romeo from 1950 until 1959. Designed by Orazio Satta, it was an important development for Alfa Romeo as the marque's first car built entirely on a production line and first production car without a separate chassis. It was also the first Alfa Romeo offered with left-hand drive. The car was introduced at the 1950 Paris Motor Show.

Alfa Romeo Automobiles S.p.A. is an Italian luxury car manufacturer and a subsidiary of Stellantis Europe. It was founded on 24 June 1910 in Milan, Italy, as A.L.F.A., an acronym for Anonima Lombarda Fabbrica Automobili. The brand is known for sport-oriented vehicles and has been involved in car racing since 1911. As of 2023 it is a subsidiary of the multinational automotive manufacturing corporation Stellantis.