The province of Siena is a province in Tuscany, Italy. Its capital is the city of Siena.

Colle di Val d'Elsa or Colle Val d'Elsa is a town and comune in the province of Siena, Tuscany.

Collalto is a village in Tuscany, central Italy, administratively a frazione of the comune of Colle di Val d'Elsa, province of Siena. At the time of the 2001 census its population was 34.

Gracciano dell'Elsa is a village in Tuscany, central Italy, administratively a frazione of the comune of Colle di Val d'Elsa, province of Siena.

Castel San Gimignano is a village in Tuscany, central Italy, administratively a frazione of the comuni of Colle di Val d'Elsa and San Gimignano, province of Siena. At the time of the 2001 census its population was 334.

Campiglia dei Foci is a village in Tuscany, central Italy, administratively a frazione of the comune of Colle di Val d'Elsa, province of Siena. At the time of the 2001 census its population was 873.

Quartaia is a village in Tuscany, central Italy, administratively a frazione of the comune of Colle di Val d'Elsa, province of Siena. At the time of the 2001 census its population was 436.

Borgatello is a village in Tuscany, central Italy, administratively a frazione of the comune of Colle di Val d'Elsa, province of Siena. At the time of the 2001 census its population was 265.

Le Grazie is a village in Tuscany, central Italy, administratively a frazione of the comune of Colle di Val d'Elsa, province of Siena. At the time of the 2018 parish census its population was 2,171.

Mensanello is a village in Tuscany, central Italy, administratively a frazione of the comune of Colle di Val d'Elsa, province of Siena. At the time of the 2001 census its population was 42.

Boscona is a village in Tuscany, central Italy, in the comune of Colle di Val d'Elsa, province of Siena. At the time of the 2001 census its population was 59.

Buliciano is a village in Tuscany, central Italy, in the comune of Colle di Val d'Elsa, province of Siena.

Coneo is a village in Tuscany, central Italy, located in the comune of Colle di Val d'Elsa, province of Siena. At the time of the 2001 census its population was 51.

Lano is a village in Tuscany, central Italy, located in the comune of Colle di Val d'Elsa, province of Siena. At the time of the 2001 census its population was 53.

Montegabbro is a village in Tuscany, central Italy, located in the comune of Colle di Val d'Elsa, province of Siena. At the time of the 2001 census its population was 14.

Onci is a village in Tuscany, central Italy, located in the comune of Colle di Val d'Elsa, province of Siena. At the time of the 2001 census its population was 25.

Paurano is a village in Tuscany, central Italy, in the comune of Colle di Val d'Elsa, province of Siena.

Sant'Andrea is a village in Tuscany, central Italy, in the comune of Colle di Val d'Elsa, province of Siena. At the time of the 2001 census its population was 34.

Scarna is a village in Tuscany, central Italy, in the comune of Colle di Val d'Elsa, province of Siena. At the time of the 2001 census its population was 56.