| Country: | POL |
| Type: | DK |
| Route: | 85 |
| Length Km: | 4.774 |
| Regions: | Masovian Voivodeship |
| Cities: | Nowy Dwór Mazowiecki, Kazuń |
| Junction: | see Route plan section |
| Maint: | GDDKiA |
| Terminus A: | Nowy Dwór Mazowiecki |
| Terminus B: | Kazuń Polski |
| Previous Type: | DK |
| Previous Route: | 84 |
| Next Type: | DK |
| Next Route: | 86 |
Droga krajowa nr 85 (translates from Polish as national road 85) is route belonging to the Polish national roads network. It runs through the Masovian voivodeship, leading from a junction with national road 62 in Nowy Dwór Mazowiecki to a junction with the S7 expressway near Kazuń Polski. National road 85 was the shortest of all Polish national roads until 1 January 2014, when a shorter national road 96 was established.