| Ala-Buga | |
| Source1 Location: | Fergana Range, Torugart Too |
| Mouth Coordinates: | 41.4306°N 74.6895°W |
| Subdivision Type1: | Country |
| Subdivision Type2: | Location |
| Subdivision Name2: | Ak-Talaa District |
| Length: | 180km (110miles) |
| Discharge1 Avg: | Annual average::31m3/s |
| Basin Size: | 5820km2 |
| Tributaries Left: | Bychan, Makmal |
The Ala-Buga (Kirghiz; Kyrgyz: Ала-Буга, also Алабуга) is a left tributary of the Naryn in Naryn Region of Kyrgyzstan. The river is known as Arpa in its upper reaches until its confluence with the Bychan.[1] The Ala-Buga is formed on the north slopes of the Torugart Too range and the south slopes of the Jaman Too mountains.
It is long, and has a drainage basin of .[2] It has an average elevation of 3290m (10,790feet), an annual average flow rate of 31m3/s, and an average specific discharge of 8.35 L/s•km2.[3]
Settlements located along the banks of Ala-Buga include Kosh-Döbö, Jerge-Tal and Kongorchok.