Although classical liberalism has not had a profound impact on political institutions in Italy since its unification in the 1860s, the country had a vibrant classical liberal tradition, especially among economists. The Italian scuola di scienza delle finanze played a key role in anticipating the approach later identified with public choice economics, and accordingly it was highly valued and appraised by James M. Buchanan. While many Italian classical liberal thinkers, both in the 19th and in the 20th century, are still by and large ignored outside the boundaries of Italy, several have had an important impact on the ideas of liberals around the world. This paper summarizes the development of classical liberalism in Italy since the 1860s, focusing on liberal economists who took part in public debate. Political realism has been a unifying feature of the Italian liberal tradition, including a strong skepticism toward ‘industrial policy,’ as top-down industrial development has been promoted by government ever since unification. This paper broadly outlines the key thinkers in this tradition: Francesco Ferrara, Vilfredo Pareto, Luigi Einaudi, Bruno Leoni, and Sergio Ricossa.