San Piero a Sieve is an urban centre and former municipality located in the Metropolitan City of Florence within the Tuscany region of Italy. Situated approximately 20 kilometres north of Florence, it serves as a key locality within its surrounding territory.
On January 1, 2014, San Piero a Sieve merged with the neighboring town of Scarperia to form the new Municipality of Scarperia e San Piero. As of 2010, the population of San Piero a Sieve was recorded at 4,065 residents.
The territory is home to the Villa del Trebbio, which has been included on the UNESCO World Heritage List since 2013. The area remains a notable point of interest within the Tuscan landscape due to these historical and cultural landmarks.