Expressway S11
Droga ekspresowa S11
Route information
Length	201.4 km (125.1 mi) plus 10.4 km single carriageway, 556.5 km (346 mi) planned
Major junctions
From	Kołobrzeg
Major intersections	S6 near Kołobrzeg (planned) S10 near Piła (planned) A2 and S5 near Poznań S8 near Kępno A1 near Katowice International Airport in Pyrzowice (planned)
To	S1 near Pyrzowice
Location
Country	Poland
Major cities	Koszalin, Piła, Poznań
Highway system
National roads in Poland Voivodeship roads
← S 10 → S 12

Expressway S11 or express road S11 (in Polish droga ekspresowa S11) is a Polish highway which has been planned to run from Kołobrzeg on the Baltic coast through Koszalin, Piła and Poznań to Piekary Śląskie (north of Katowice). Its total planned length is about 556.5 kilometres (346 mi).

As of 2024, several sections serving as bypasses of cities and towns are open to traffic, totalling 120.5 km. A few further sections of the expressway are under construction, but most of it still awaits development.^[1] According to the plans, the road should be fully completed by 2030.^[2]

The sections which were constructed with high priority were those which serve as bypasses of the city of Poznań and several smaller cities and towns along the planned highway route. In June 2012, the fragment between DK92 and the A2 motorway opened to traffic. This stretch of the expressway serves as the western bypass of Poznań and provides faster access to Poznań's airport, as well as diverting most of the traffic away from Poznań's congested city centre. The section which serves as the city's western bypass was completed in 2014.

In 2023 the section from Koszalin to Bobolice (47.8 km)^[3] as well as the bypass of Olesno (24.8 km)^[4] were completed.

• Highways in Poland