| Official Name: | Qayınlıq |
| Native Name: | Каенлык |
| Native Name Lang: | tt |
| Settlement Type: | selo |
| Pushpin Map: | Russia Tatarstan |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Type1: | Region |
| Subdivision Name1: | Tatarstan |
| Subdivision Type2: | County |
| Subdivision Type3: | District |
| Subdivision Name3: | Biektaw District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +3:00 |
Qayınlıq (Tatar: Каенлык|translit=Qayınlıq) is a rural locality (a selo) in Biektaw District, Tatarstan. The population was 377 as of 2010.[1]
Qayınlıq, Vysokogorsky District is located 18 km northwest of Biektaw, district's administrative centre, and 44 km north of Qazan, republic's capital, by road.[1] [2]
The village was established in 1930s.
After the creation of districts in Tatar ASSR (Tatarstan) in Döbyaz (1930s–1963), Yäşel Üzän (1963–1965) and Biektaw districts.[1]