| Ilva | |
| Name Other: | Ilva patak |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Mureș County |
| Length: | 23km (14miles) |
| Mouth: | Mureș |
| Mouth Location: | Lunca Bradului |
| Mouth Coordinates: | 46.9549°N 25.1275°W |
| Basin Size: | 126km2 |
The Ilva (hu|Ilva-patak |Ilva, Ilva-patak) is a right tributary of the river Mureș in Transylvania, Romania. It discharges into the Mureș in Lunca Bradului.[1] Its length is 23km (14miles) and its basin size is 126km2.
The following rivers are tributaries to the river Ilva: