Ilişua may refer to several places in Romania:
- Ilișua, Bistrița-Năsăud , a village in Uriu Commune, Bistrița-Năsăud County
- Ilișua, Sălaj , a village in Sărmășag Commune, Sălaj County
- Ilișua (river), a tributary of the Someșul Mare in Bistrița-Năsăud County