| Ilișua | |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Bistrița-Năsăud County |
| Subdivision Type3: | Communes |
| Subdivision Name3: | Târlișua, Spermezeu, Căianu Mic, Uriu |
| Length: | 52km (32miles) |
| Mouth: | Someșul Mare |
| Mouth Location: | Cristeștii Ciceului |
| Mouth Coordinates: | 47.1849°N 24.0793°W |
| Basin Size: | 353km2 |
| Tributaries Left: | Strâmba, Dumbrăvița |
| Tributaries Right: | Valea Lungă, Dobricel |
The Ilișua is a right tributary of the river Someșul Mare in Romania. It discharges into the Someșul Mare in Cristeștii Ciceului.[1] Its length is 52km (32miles) and its basin size is 353km2.