FS Class 103 was a class of 2-2-2 steam locomotives of the Italian State Railways (FS), originally built for the Strade Ferrate dello Stato Piemontese (SFSP).

Fifteen locomotives were built in Britain between 1853 and 1855 by Sharp, Stewart and Company and were numbered 34 to 38 and 80 to 89 by the SFSP, which used them for the haulage of fast trains.

In 1865 they passed to Società per le strade ferrate dell'Alta Italia (SFAI) which numbered them from 91 to 105.

In 1905, only 5 units survived to be taken over by Ferrovie dello Stato (FS), which registered them as Class 103 with numbers from 1031 to 1035.

The design of the engines was typically British with outside frames and inside cylinders.