The list of tunnels includes any road tunnel, railway tunnel or waterway tunnel anywhere in the world.
Specifically notable tunnels in the People's Republic of China include: e.g.: Road tunnel in operation: Road tunnel under construction: Railway tunnel in operation: Railway tunnel under construction: No metro, but some long road tunnels, including Hvalfjörður Tunnel at 5.8 km (3.6 mi) and some longer, and the longest (non-road) hydroelectric tunnel in Europe, one of the longest tunnels of any kind in the world, at Kárahnjúkar Hydropower Plant at 39.7 km (24.7 mi) Road tunnels in operation Road tunnels under construction Railway tunnels in operation Road tunnels in operation Railway tunnels in operation