National road 3 () was a route in the Polish national road network. The highway connected the northwestern and southwestern regions of Poland, running from à Âwinoujà Âcie at the German border to Jakuszyce at the Czech border, traversing through the West Pomeranian, Lubusz and Lower Silesian voivodeships. National Road 3 was a component of European highway E65.
National road 3 has been upgraded to the express road S3, with the older highway mostly being classified as a gmina road, running parallel to or near the completed sections of the modern expressway.
In 2024, the National Road 3 has been fully replaced with the express road S3 (à Âwinoujà Âcie - Lubawka) and National road 5 (Poland) (Bolków) - Jakuszyce. However, the roads are still classified as the European Highway E65.