Sillano is a frazione located within the municipality of Sillano Giuncugnano in the Province of Lucca, situated in the Tuscany region of Italy. Geographically, it is positioned approximately 90 kilometres (56 mi) northwest of Florence and about 45 kilometres (28 mi) northwest of Lucca.
Historically, Sillano functioned as an independent comune until it was merged into its current administrative status on 1 January 2015.