| Čierna voda | |
| Source1 Location: | Little Carpathians |
| Mouth Coordinates: | 47.9593°N 17.8779°W |
| Length Km: | 105.5 |
| Tributaries Left: | Dudváh |
The Čierna voda is a lowland river in western Slovakia. It is 105.5 km long.[1] Its source is in the Little Carpathians, near the town Svätý Jur. Near the town Čierna Voda, it is joined by its largest tributary: the Dudváh. It discharges into the Little Danube river near the village Dolný Chotár.