| Blava | |
| River | |
| Countries | Slovakia |
|---|---|
| Counties | Trnava |
| Source | |
| - location | Little Carpathians, Trnava |
| Mouth | Dudváh |
| Length | 38 km (24 mi) |
The Blava is a tributary of the Dudváh in Trnava District, Western Slovakia. Its source is located in the Little Carpathians Mountains.