Allardt
- County:
- Fentress County
- County Seat:
- No
- Area (mi²):
- 3.77
- State:
- Tennessee
Allardt is a city located in Fentress County, Tennessee. Allardt has a 2026 population of 602. Allardt is currently growing at a rate of 2.21% annually and its population has increased by 8.27% since the most recent census, which recorded a population of 556 in 2020.