The ETR 300, also known as "Settebello-type" for its use on the former Settebello train service, is a type of Italian fast electric multiple unit (EMU) trainset formerly operated by Ferrovie dello Stato. The letters ETR stood for elettrotreno rapido. Thanks to its aerodynamically low-drag profile, it boasted a maximum speed of 200 km/h (124 mph), with a power output of 2600 kW. Manufactured for FS by Breda, a total of only three trainsets were built, numbered ETR 301–303.

The Settebello was a famous Italian high-speed express train that linked Milano Centrale in Milan with Roma Termini station in Rome, via Bologna and Florence. Introduced in 1953, it was operated by the Italian State Railways (FS) and used the distinctive ETR 300-type electric multiple unit trainsets, featuring observation lounges at the front and rear of the train. When introduced, it "set a standard of speed and luxurious travelling accommodation previously unknown in Italy [and] rivalling anything else on European rails." It was a Trans Europ Express (TEE) from 1974 until its withdrawal, in 1984.