Poland–Sweden relations

Poland–Sweden relations are historical and bilateral relations between Poland and Sweden. Both countries are separated by the Baltic Sea and have had a very long historical contact and extensive history marked by periods of alliance and cooperation, as well as several conflicts.

Initially often allies since the Middle Ages, relations turned into an intense rivalry for dominance in the Baltic Sea region and Northern and Central Europe with a series of wars in the early modern period, with rather sporadic rapprochements between wars. After losing their positions as great powers, there was a more permanent rapprochement between the countries, and at the beginning of the 20th century, Poland and Sweden enjoyed a close relationship, which was interrupted by the Soviet and German invasion of Poland, which started World War II, however, cooperation continued despite the occupation of Poland and formal neutrality of Sweden. After the war, both re-established relations and Sweden has become the largest economic contributor for Poland among the Nordic countries.

Both Poland and Sweden are members of the EU, NATO, OECD, OSCE, Council of the Baltic Sea States, HELCOM, Council of Europe and the World Trade Organization. There are over 90,000 Poles in Sweden and resident from both countries visit each other frequently. Poland fully supported Sweden's application to join NATO, which resulted in membership on 7 March 2024.