| En Name: | Tandinsky District |
| Ru Name: | Тандинский кожуун |
| Loc Name1: | Таңды кожуун |
| Loc Lang1: | Tyvan |
| Image View: | Бай-Хаак адрези.jpg |
| Coordinates: | 51.137°N 94.595°W |
| Flag Caption: | Flag of the kozhuun |
| Federal Subject: | Tuva Republic |
| Adm Data As Of: | November 2007 |
| Adm Ctr Type: | selo |
| Adm Ctr Name: | Bay-Khaak |
| Selsoviet Type1: | sumon |
| No Of Selsoviets Type1: | 8 |
| No Of Rural Localities: | 13 |
| Mun Data As Of: | October 2011 |
| Mun Formation1: | Tandinsky Municipal District |
| Mun Formation1 No Of Urban Settlements: | 0 |
| Mun Formation1 No Of Rural Settlements: | 8 |
| Area Of What: | municipal district |
| Area As Of: | October 2011 |
| Area Km2: | 5091.70 |
| Pop 2010Census: | 12891 |
| Urban Pop 2010Census: | 0% |
| Rural Pop 2010Census: | 100% |
| Website: | https://www.tandy-kozhuun.ru/ |
| Date: | January 2013 |
Tandinsky District (Russian: Танди́нский кожуун; Tuvinian: Таңды кожуун, Tañdı kojuun) is an administrative[1] and municipal[2] district (raion, or kozhuun), one of the seventeen in the Tuva Republic, Russia. It is located in the center of the republic. The area of the district is 5091.7km2. Its administrative center is the rural locality (a selo) of Bay-Khaak. Population: 13,827 (2002 Census); The population of Bay-Khaak accounts for 23.1% of the district's total population.