Biblioteca Fardelliana, Public and periodical library in Trapani, Italy.

The Biblioteca Fardelliana is a public library in Trapani specializing in periodicals and research materials housed across multiple reading areas. Its collection exceeds 150,000 items spanning books, journals, documents, and archives from various fields and time periods.

Founded in 1830 by Giovanbattista Fardella, Minister of War of the Kingdom of the Two Sicilies, who donated his books and papers, the library opened with historian Giuseppe Di Ferro as the Public Municipal Library of Capovalle and took the name Fardelliana in March 1831. It was housed in the Palazzo della Compagnia dei Bianchi, moved after 1860 to the former church of San Giacomo Maggiore, and became a moral entity on 9 September 1889, run by the Comune and the Province of Trapani; since 2014 the Comune alone funds it.

The library published a quarterly journal, La Fardelliana, from 1982; its first issue was presented by the regional deputy Vincenzo Occhipinti, and the last number appeared in 1999. The name Fardelliana comes from General Giovanbattista Fardella di Torrearsa, who donated most of his books and papers.

The library occupies the former church of San Giacomo Maggiore, so the reading rooms follow the building's single-hall layout rather than a modern floor plan. The Sala Fardella holds the columns brought from the church of San Rocco. The building was restored in 2008 with about one million euros of EU POR 2000-2006 funds.

The four columns in the Sala Fardella were brought here from the church of San Rocco and are described as the last surviving remains of Arab-era Trapani. The library also keeps the papers of composer Antonio Scontrino and politician Nunzio Nasi, and its oldest item is a Saint Augustine incunabulum printed in Cologne in 1467.