Lahti sub-region
| Lahti sub-region Lahden seutukunta | |
|---|---|
| Country | Finland | 
| Region | Päijänne Tavastia | 
| Capital | Lahti | 
| Population | |
|  • Total | 204,651 | 
| Time zone | UTC+2 (EET) | 
| • Summer (DST) | UTC+3 (EEST) | 
Lahti sub-region is a subdivision of Päijänne Tavastia and one of the sub-regions of Finland since 2009. The Lahti region has a population of 204,651, making it the fifth largest region in Finland after Helsinki, Tampere, Turku and Oulu.