| Ordâncușa | |
| Name Other: | Ordencușa |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Alba County |
| Length: | 10km (10miles) |
| Source1: | Mount Cluj |
| Source1 Location: | Bihor Mountains |
| Source1 Coordinates: | 46.5292°N 22.8383°W |
| Source1 Elevation: | 1314m (4,311feet) |
| Mouth: | Gârda Seacă |
| Mouth Location: | Gârda de Sus |
| Mouth Coordinates: | 46.4611°N 22.8258°W |
| Mouth Elevation: | 741m (2,431feet) |
| Progression: | Gârda Seacă→ |
| Basin Size: | 22km2 |
The Ordâncușa (also: Ordencușa) is a left tributary of the river Gârda Seacă in Romania. It discharges into the Gârda Seacă near Gârda de Sus. Its length is 10km (10miles) and its basin size is 22km2.