&sq=Facebook&lang=en&file=File:Nat_road_6_BG.svg) | |
|---|---|
| Републикански път I-6 | |
&sq=Facebook&lang=en&file=File:Bulgaria_roadmap_bg_I-6.svg) I-6 road highlighted in orange | |
| Route information | |
| Length | 508.5 km (316.0 mi) |
| Major junctions | |
| From | Gyueshevo &sq=Facebook&lang=en&file=File:BAB-Grenze.svg){kind=small} ;  |
| To | Burgas |
| Location | |
| Country | Bulgaria |
| Major cities | Kyustendil, Pernik, Sofia, Pirdop, Sopot, Karlovo, Kazanlak, Sliven, Karnobat, Aytos |
| Highway system | |
National Road I-6 (Bulgarian: Републикански път I-6) is a major road in Southern Bulgaria. It runs from Gyueshevo at the border with North Macedonia and Burgas on the Black Sea coast. With a total length of 508.5 km (316.0 mi), I-6 road is the longest road in Bulgaria.