| Kastl | |
| Image Coa: | DEU Kastl COA.svg |
| Coordinates: | 49.8167°N 65°W |
| Image Plan: | Kastl in TIR.svg |
| State: | Bayern |
| Region: | Oberpfalz |
| District: | Tirschenreuth |
| Verwaltungsgemeinschaft: | Kemnath |
| Elevation: | 460 |
| Area: | 24.74 |
| Postal Code: | 95506 |
| Area Code: | 09642 |
| Licence: | TIR |
| Gemeindeschlüssel: | 09 3 77 128 |
| Divisions: | 13 Ortsteile |
| Website: | www.kastl-kem.de |
| Mayor: | Hans Walter[1] |
| Leader Term: | 2020 - 26 |
| Party: | CSU |
Kastl is a municipality in the district of Tirschenreuth in Bavaria, Germany.