Salvatore Di Giacomo (12 March 1860 – 5 April 1934) was an Italian poet, songwriter, playwright and fascist, one of the signatories to the Manifesto of the Fascist Intellectuals.

Di Giacomo is credited as being one of those responsible for renewing Neapolitan language poetry at the beginning of the 20th century. The language of Salvatore Di Giacomo is, however, not the everyday Neapolitan language of his contemporaries; it has a distinct 18th-century flavour to it, with archaisms that recall the golden age of Neapolitan culture. This was the period between 1750 and 1800, when Neapolitan was the language of the best-loved form of musical entertainment in Italy, the Neapolitan comic opera.