Biblioteca leonardiana, Public library and Italian national heritage in Vinci, Italy

The Biblioteca Leonardiana is a public library in Vinci housing approximately 22,000 texts, manuscripts, and drawings by or about Leonardo da Vinci from different periods and countries. The collection also includes an international catalog documenting published works about the Renaissance master across centuries of scholarship.

The library's origins lie in 1883, when Roberto Martelli became mayor of Vinci and began gathering Leonardo studies, helped by honorary citizenship granted to scholars such as Gustavo Uzielli and Giovanni Piumati. In 1919 Count Giulio Masetti da Bagnano donated the Castello dei Conti Guidi as its seat, restored by 1934. Renzo Cianchi and Aladino Baldereschi catalogued the volumes for the official opening in 1928; in 1983 the library moved to new premises, leaving the castle to the Museo Leonardiano.

Since 1961 the library has run the Letture Vinciane, a lecture series on Leonardo that opens study and research into his life; the 1952 quincentenary of his birth made it the hub of initiatives. Its Uzielli collection gathers about three hundred key publications up to 1910, and a section covers authors contemporary with or later than Leonardo who wrote about his work.

Visitors can use smartphones to access Leonardo's complete works through the e-Leo digital platform with advanced search and zooming features available online. This digital access allows people to explore the collection from outside the library and continue their study independently.

The library holds reproductions of 22,000 manuscripts and drawings, plus facsimiles of all Leonardo's manuscripts. Its Uzielli collection gathers about three hundred major publications up to 1910, and it keeps unpublished letters to the scholar Giovan Battista Venturi (1746–1822).