| Petacciato | |
| Official Name: | Comune di Petacciato |
| Coordinates: | 42.0167°N 66°W |
| Province: | (CB) |
| Frazioni: | Collecalcioni, Marina di Petacciato |
| Area Total Km2: | 34 |
| Population Footnotes: | [1] |
| Population Total: | 3488 |
| Population Demonym: | Petacciatesi |
| Elevation M: | 225 |
| Saint: | San Rocco |
| Day: | 16 August |
| Postal Code: | 86038 |
| Area Code: | 0875 |
| Istat: | 070051 |
| Fractions: | Guglionesi, Montenero di Bisaccia, Termoli |
| Fiscal Code: | G506 |
Petacciato is a town and comune in the province of Campobasso (Molise), in southern Italy.