Droga ekspresowa S17) is a Polish highway which, when completed, will run from Warsaw through Lublin to the border crossing with Ukraine at Hrebenne/Rava-Ruska.

The section between Warsaw and Lublin was to be finished by 2015, but with subsequent reductions in government spending on infrastructure, the investment was delayed.

The section was constructed in the design-build system starting late 2015 and early 2016, and the road was opened to traffic in 2019 and 2020.

[1][2] The road southeast of Lublin has smaller traffic density and received a lower priority, except for the bypass of Tomaszów Lubelski which was opened in 2021 (first carriageway only).

Apart from the southernmost section from Lubelska to Zakręt, which was opened in 2022, the construction timetable is not yet set due to the environmental permit having been challenged in the courts.