| Cubic | |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Satu Mare County |
| Subdivision Type3: | Villages |
| Subdivision Name3: | Ghirolt, Rădulești |
| Length: | 17km (11miles) |
| Mouth: | Ier |
| Mouth Location: | near Căuaș |
| Mouth Coordinates: | 47.5789°N 22.5094°W |
| Custom Label: | River code |
| Custom Data: | III.1.44.33.28.a |
The Cubic is a right tributary of the river Ier in Romania. It flows into the Ier near Căuaș. Its length is 17km (11miles).