Nowa Wieś Wielka–Gdynia Port railway

Nowa Wieś Wielka–Gdynia Port railway is a primary (classified as a main line up to km 33.000), partially electrified, single- and double-track railway line in northern Poland, connecting Nowa Wieś Wielka railway station with the Gdynia Port railway station via Bydgoszcz, Wierzchucin, Lipowa, Kościerzyna, Somonino, and Gdynia. The line runs through the Kuyavian-Pomeranian and Pomeranian voivodeships, within the operational area of PKP Polskie Linie Kolejowe in Gdańsk. It is equipped with Automatic Train Braking inductors along its entire length.

Nowa Wieś Wielka–Gdynia Port railway is part of the Polish Coal Trunk-Line, one of the key infrastructure investments of the Second Polish Republic. It is classified as a line of national importance. The line provided a direct connection to the port in Gdynia, bypassing the Free City of Danzig, thus facilitating coal exports, which had previously been severely hindered by the Free City's authorities. Due to border changes in 1939, the line lost its strategic importance and became a regional route, now serving as a detour in case of disruptions on the Tczew–Gdańsk–Gdynia section.