Vaiano is a comune (municipality) in the Province of Prato in the Italian region of Tuscany.

As of 31 December 2004, it had a population of 9,532 and an area of 34.2 square kilometres (13.2 sq mi).

[3] The municipality of Vaiano contains the frazioni (subdivisions, mainly villages and hamlets) Fabio, Faltugnano, Gamberame, La Briglia, La Cartaia, La Foresta, La Tignamica, Le Fornaci, Meretto, Parmigno, Popigliano, Savignano, San Leonardo in Collina, Schignano and Sofignano.

Vaiano borders the following municipalities: Barberino di Mugello, Calenzano, Cantagallo, Montemurlo, Prato.

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