| Blatno | |
| Settlement Type: | Municipality |
| Subdivision Type: | Country |
| Subdivision Type1: | Region |
| Subdivision Name1: | Ústí nad Labem |
| Subdivision Type2: | District |
| Subdivision Name2: | Chomutov |
| Pushpin Map: | Czech Republic |
| Pushpin Relief: | 1 |
| Pushpin Map Caption: | Location in the Czech Republic |
| Coordinates: | 50.5117°N 13.3581°W |
| Established Title: | First mentioned |
| Established Date: | 1352 |
| Area Total Km2: | 45.34 |
| Elevation M: | 660 |
| Population As Of: | 2024-01-01 |
| Population Footnotes: | [1] |
| Population Total: | 615 |
| Population Density Km2: | auto |
| Timezone1: | CET |
| Utc Offset1: | +1 |
| Timezone1 Dst: | CEST |
| Utc Offset1 Dst: | +2 |
| Postal Code Type: | Postal code |
| Postal Code: | 430 01 |
Blatno (German: Platten) is a municipality and village in Chomutov District in the Ústí nad Labem Region of the Czech Republic. It has about 600 inhabitants.
Blatno lies approximately 6km (04miles) north-west of Chomutov, 52km (32miles) west of Ústí nad Labem, and 90km (60miles) north-west of Prague. The Bílina River originates in the municipal territory.
The villages of Bečov, Hrádečná, Květnov, Mezihoří, Radenov, Šerchov and Zákoutí are administrative parts of Blatno.