| Ala-Archa | |
| Subdivision Type1: | Country |
| Subdivision Name1: | Kyrgyzstan |
| Subdivision Type3: | Region |
| Subdivision Name3: | Chüy Region |
| Subdivision Type4: | District |
| Subdivision Name4: | Alamüdün District |
| Subdivision Type5: | City |
| Subdivision Name5: | Bishkek |
| Length: | 78km (48miles) |
| Mouth: | Chu |
| Mouth Coordinates: | 43.0623°N 74.6382°W |
| Basin Size: | 270km2 |
| Tributaries Right: | Kashka-Suu |
The Ala-Archa (Kirghiz; Kyrgyz: Ала-Арча, also Аларча) is a river flowing through Alamüdün District of Chüy Region of Kyrgyzstan. It rises on the northern slopes of Kyrgyz Ala-Too and flows north to enter the river Chu in Chüy Valley. The Ala-Archa is 78km (48miles) long and has a basin area of 270km2.[1] Its water comes mostly from glaciers and snow.[2]
The river runs through Ala Archa National Park and through Bishkek. Other settlements in the river basin are Kashka-Suu, Baytik, Orto-Say, Tash-Döbö and Mayevka.