Sopot [ˈsɔpɔt] (listen) (Kashubian: Sopòt) is a seaside resort city in Eastern Pomerania on the southern coast of the Baltic Sea in northern Poland, with a population of approximately 40,000.

Spa House and Sheraton Hotel (top) and Pier in Sopot (bottom)
Najmniejsze z wielkich miast
(Smallest of the great cities)
Coordinates: 54°26′N 18°33′E
Country Poland
Voivodeship Pomeranian
Countycity county
Established8th century
Town rights1901
  MayorJacek Karnowski (PO)
  City17.31 km2 (6.68 sq mi)
Highest elevation
152.7 m (501.0 ft)
Lowest elevation
0 m (0 ft)
  Density2,100/km2 (5,500/sq mi)
1,080,000 (Tricity)
Time zoneUTC+1 (CET)
  Summer (DST)UTC+2 (CEST)
Postal code
81-701 to 81-878
Area code(s)+48 58
Car platesGSP

Sopot is a city with powiat (county) status, in Pomeranian Voivodeship. Until 1999 Sopot was part of the Gdańsk Voivodeship. It lies between the larger cities of Gdańsk to the southeast and Gdynia to the northwest. The three cities together make up the metropolitan area of Tri-City.

Sopot is a major health-spa and tourist resort destination. It has the longest wooden pier in Europe, at 515.5 metres, stretching out into the Bay of Gdańsk. The city is also famous for its Sopot International Song Festival, the largest such event in Europe after the Eurovision Song Contest. Among its other attractions is a fountain of bromide spring water, known as the "inhalation mushroom".