| Collesalvetti | |
| Official Name: | Comune di Collesalvetti |
| Coordinates: | 43.6°N 39°W |
| Region: | Tuscany |
| Province: | Livorno (LI) |
| Frazioni: | Castell'Anselmo, Colognole, Guasticce, Nugola, Parrana San Martino, Parrana San Giusto, Stagno, Vicarello |
| Mayor: | Adelio Antolini |
| Area Total Km2: | 109.6 |
| Population Total: | 16330 |
| Population As Of: | 31 December 2021[1] |
| Population Demonym: | Colligiani |
| Elevation M: | 40 |
| Saint: | Sts. Quriaqos and Julietta |
| Day: | June 16 |
| Postal Code: | 57014 |
| Area Code: | 0586 |
Collesalvetti is a comune (municipality) in the Province of Livorno in the Italian region Tuscany, located about 70km (40miles) southwest of Florence, 20km (10miles) northeast of Livorno and only 16km (10miles) south from Pisa.
Collesalvetti borders the following municipalities: Cascina, Crespina, Fauglia, Livorno, Orciano Pisano, Pisa, Rosignano Marittimo.
The comune is formed by the municipal seat of Collesalvetti and the frazioni – towns and villages – of Castell'Anselmo, Colognole, Guasticce, Nugola, Parrana San Martino, Parrana San Giusto, Stagno and Vicarello. The hamlet of Mortaiolo is also included in the municipality.
Collesalvetti is twinned with:
Garching an der Alz, Germany, since 2003