European route E 261 is a Class B road part of the International E-road network. It begins in Bielany Wrocławskie near Wrocław and ends in Nowe Marzy near Świecie.

E261
Major junctions
From	E40 Bielany Wrocławskie
Major intersections	E67 Wrocław E30 Poznań
To	E75 Nowe Marzy
Location
Countries	Poland
Major cities	Wrocław Leszno Poznań Gniezno Bydgoszcz Świecie
Highway system
International E-road network A Class B Class

Route: Bielany Wrocławskie – Wrocław – Leszno – Poznań – Gniezno – Bydgoszcz – Świecie – Nowe Marzy.

E261 follows the route of Polish national road 5 for its entire length. It is the only European route in Poland that does not cross the country border or even approach it. On some older road maps of Poland the route was extended from Bielany Wrocławskie to Bolków.