| Șomuz | |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Suceava County |
| Subdivision Type3: | Villages |
| Subdivision Name3: | Lucăcești, Cornu Luncii, Baia, Fântâna Mare, Vadu Moldovei |
| Length: | 32km (20miles) |
| Mouth: | Moldova |
| Mouth Coordinates: | 47.3448°N 26.4077°W |
| Basin Size: | 101km2 |
| Tributaries Left: | Șomuzul Mic |
The Șomuz is a left tributary of the river Moldova in Romania. It flows into the Moldova near Roșiori. Its length is 32km (20miles) and its basin size is 101km2. For much of its length it flows parallel to the north of the Moldova.