What is the name of a Large port in northern Germany?

The name of a large port in northern Germany is Hamburg. Hamburg is a major port city in northern Germany, located at the mouth of the Elbe River. It is the second-largest city in Germany and the largest city in the northern part of the country. Hamburg is a major economic center and a significant hub for trade, logistics, and transportation. The port of Hamburg is one of the largest and busiest in Europe, handling a significant amount of cargo.