| Official Name: | Aday |
| Native Name: | Адай |
| 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: | Aqtanış District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +3:00 |
Aday (Tatar: Адай|Aday) is a rural locality (a selo) in Aqtanış District, Tatarstan. The population was 254 as of 2010.[1] Aday, Aktanyshsky District is located 35 km from Aqtanış, district's administrative centre, and 344 km from Qazan, republic's capital, by road.[2] [3] The earliest known record of the settlement dates from 1747.There are 4 streets in the village.[4]