| Official Name: | Acha-Kayyngdy |
| Native Name: | Ача-Кайыңды |
| Pushpin Map: | Kyrgyzstan |
| Subdivision Type: | Country |
| Subdivision Name: | Kyrgyzstan |
| Subdivision Type1: | Region |
| Subdivision Name1: | Naryn |
| Subdivision Type2: | District |
| Subdivision Name2: | At-Bashy |
| Population As Of: | 2021 |
| Population Total: | 5181 |
| Utc Offset: | +6 |
| Coordinates: | 41.1417°N 75.8111°W |
Acha-Kayyngdy (Kirghiz; Kyrgyz: Ача-Кайыңды, formerly Oy-Tersken) is a village in Naryn Region of Kyrgyzstan. It is part of the At-Bashy District.[1] Its population was 5,181 in 2021.