| Casciana Terme Lari | |
| Official Name: | Comune di Casciana Terme Lari |
| Coordinates: | 43.5689°N 10.5936°W |
| Region: | Tuscany |
| Province: | Pisa (PI) |
| Frazioni: | Casciana Alta, Casciana Terme, Ceppato, Cevoli, Collemontanino, Lari, Lavaiano, Parlascio, Perignano, Sant'Ermo, San Ruffino, Usigliano |
| Mayor: | Mirko Terreni |
| Area Total Km2: | 81.4 |
| Population Total: | 12436 |
| Population As Of: | 31 August 2017[1] |
| Population Demonym: | Cascianesi and Larigiani |
| Elevation M: | 127 |
| Postal Code: | 56034; 56035 |
| Area Code: | 0587 |
Casciana Terme Lari is a comune (municipality) in the Province of Pisa in the Italian region Tuscany, located about 60km (40miles) southwest of Florence and about 30km (20miles) southeast of Pisa.
Casciana Terme Lari borders the following municipalities: Capannoli, Cascina, Chianni, Crespina Lorenzana, Santa Luce, Ponsacco, Pontedera, Terricciola.
The municipality is composed by twelve frazioni (towns and villages):
The municipality of Casciana Terme Lari was created on 1 January 2014 by merging the former municipalities of Casciana Terme and Lari.[2] The municipal seat is in Lari.