Bremerhaven (German pronunciation: [ˌbʁeːmɐˈhaːfn̩] (listen), lit. 'Bremener Harbour', Low German: Bremerhoben) is a city at the seaport of the Free Hanseatic City of Bremen, a state of the Federal Republic of Germany.
It forms a semi-enclave in the state of Lower Saxony and is located at the mouth of the Weser on its eastern bank, opposite the town of Nordenham. Though a relatively new city, it has a long history as a trade port and today is one of the most important German ports, playing a role in Germany's trade.
Wesermünde was a neighboring city created in 1924 through the merger of Geestemünde and Lehe. In 1939, Bremerhaven was incorporated into Wesermünde, but in 1947 the cities were collectively renamed as Bremerhaven and returned to the Free Hanseatic City of Bremen.