| Lu | |
| Official Name: | Comune di Lu |
| Coordinates: | 45°N 37°W |
| Region: | Piedmont |
| Province: | Alessandria (AL) |
| Frazioni: | Bodelacchi, Borghina, Castagna, Martini, Trisogli |
| Mayor: | Michele Filippo Fontefrancesco |
| Area Total Km2: | 21.88 |
| Population Total: | 1108 |
| Population As Of: | 1-1-2017[1] |
| Population Demonym: | Luese(i) |
| Elevation M: | 307 |
| Postal Code: | 15040 |
| Area Code: | 0131 |
Lu (pronounced as /it/, ˈly/) is a comune (municipality) in the Province of Alessandria in the Italian region Piedmont, located about 60km (40miles) east of Turin and about 14km (09miles) northwest of Alessandria.