Gdańsk is a city on the Baltic coast in northern Poland, at the centre of the country's fourth-largest metropolitan area.
The city lies on the southern edge of Gdańsk Bay (of the Baltic Sea), in a conurbation with the city of Gdynia, spa town of Sopot, and suburban communities, which together form a metropolitan area called the Tricity (Trójmiasto), with a population of over 800,000. Gdańsk itself has a population of 435,830 (June 2010), making it the largest city in the Pomerania region of Northern Poland.
Gdańsk is Poland's principal seaport as well as the capital of the Pomeranian Voivodeship. It is also historically the largest city of the Kashubian region. The city is close to the former late medieval/modern boundary between West Slavic and Germanic lands and it has a complex political history with periods of Polish rule, periods of German rule, and extensive self-rule, with two spells as a free city. It has been part of modern Poland since 1945.