The Kingdom of the Two Sicilies is the largest of the states of Italy before the Italian unification.

It is formed as a union of the Kingdom of Sicily and the Kingdom of Naples, which collectively had long been called the "Two Sicilies" (Utraque Sicilia, literally "both Sicilies").

The Kingdom of the Two Sicilies lasts from 1815 until 1860, when it is annexed by the Kingdom of Sardinia to form the Kingdom of Italy in 1861.

The capitals of the Two Sicilies are in Naples and in Palermo.

The kingdom extends over the Mezzogiorno (the southern part of mainland Italy) and the island of Sicily.

The kingdom is heavily agricultural, like the other Italian states; the church owned 50–65% of the land by 1750.