| Official Name: | Ayu |
| Native Name: | Аю |
| 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: | Minzälä District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +3:00 |
Ayu (tt|Аю|Ayu) is a rural locality (a selo) in Minzälä District, Tatarstan. The population was 400 as of 2010.[1] Ayu, Tatarstan is located 16 km from Мinzälä, district's administrative centre, and 303 km from Qаzаn, republic's capital, by road.[2] [3] The earliest known record of the settlement dates from 1725.There are 8 streets in the village.[4]