The Port of Rotterdam is the largest harbour in Europe (measured by the number of containers that are transported through the port each year). For decades, Rotterdam even had the largest port in the entire world. However, since the early 2000s, it was overtaken by several Asian ports. As of 2017, the Port of Rotterdam is the eleventh busiest port in the world.
The Dutch government refers to the Port of Rotterdam as a mainport. A mainport is a transport node that plays a key role in international transport. The Port of Rotterdam is such an important international transport node, because it has an open connection to the sea and gives access to a very populous and wealthy hinterland. From the Port of Rotterdam, products can quickly and easily be transported across all of northwestern Europe. The port has excellent road, rail and river connections.