Sejny is a town in north-eastern Poland and the capital of Sejny County, in Podlaskie Voivodeship, close to the northern border with Lithuania and Belarus. It is located in the eastern part of the Suwałki Lake Area, on the Marycha river, being a tributary of the Czarna Hańcza. As of 1999 it had almost 6,500 permanent inhabitants, with a strong seasonal increase during the tourist season.
Suwałki Region is a historical region around the city of Suwałki in northeastern Poland near the border with Lithuania. It encompasses the powiats of Augustów, Suwałki, and Sejny, and roughly corresponds to the southern part of the former Suwałki Governorate.
Sejny County a unit of territorial administration and local government (powiat) in Podlaskie Voivodeship, in the extreme north-east of Poland, on the border with Lithuania and Belarus. It came into being on January 1, 1999, as a result of the Polish local government reforms passed in 1998. Its administrative seat and only town is Sejny, which lies 112 kilometres (70 mi) north of the regional capital Białystok.
Suwałki County is a unit of territorial administration and local government (powiat) in Podlaskie Voivodeship, north-eastern Poland, on the Lithuanian border. It came into being on January 1, 1999, as a result of the Polish local government reforms passed in 1998. Its administrative seat is the city of Suwałki, although the city is not part of the county ; there are no towns within the county.
Giby is a village in Sejny County, Podlaskie Voivodeship, in north-eastern Poland, close to the borders with Belarus and Lithuania. It is the seat of the gmina called Gmina Giby. It lies approximately 10 kilometres (6 mi) south of Sejny and 103 km (64 mi) north of the regional capital Białystok. It lies between the lakes of Gieret and Pomorze, the Marycha River flows through the village.
The Sejny Uprising or Seinai Revolt refers to a Polish uprising against the Lithuanian authorities in August 1919 in the ethnically mixed area surrounding the town of Sejny. When German forces, which occupied the territory during World War I, retreated from the area in May 1919, they turned over administration to the Lithuanians. Trying to prevent an armed conflict between Poland and Lithuania, the Entente drew a demarcation line, known as the Foch Line. The line assigned much of the disputed Suwałki (Suvalkai) Region to Poland and required the Lithuanian Army to retreat. While the Lithuanians retreated from some areas, they refused to leave Sejny (Seinai), because of its major Lithuanian population. Polish irregular forces began the uprising on August 23, 1919, and soon received support from the regular Polish Army. After several military skirmishes, Polish forces secured Sejny and the Lithuanians retreated behind the Foch Line.
The Lithuanian minority in Poland consists of 8,000 people living chiefly in the Podlaskie Voivodeship, in the north-eastern part of Poland. The Lithuanian embassy in Poland notes that there are about 15,000 people in Poland of Lithuanian ancestry.
Klejwy is a village in the administrative district of Gmina Sejny, within Sejny County, Podlaskie Voivodeship, in north-eastern Poland, close to the border with Lithuania. It lies approximately 6 kilometres (4 mi) north-west of Sejny and 115 km (71 mi) north of the regional capital Białystok.
Marynowo is a village in the administrative district of Gmina Sejny, within Sejny County, Podlaskie Voivodeship.
Gmina Puńsk is a rural gmina in Sejny County, Podlaskie Voivodeship, in north-eastern Poland, on the Lithuanian border. Its seat is the village of Puńsk, which lies approximately 20 kilometres (12 mi) north-west of Sejny and 126 km (78 mi) north of the regional capital Białystok. The current mayor of Gmina Puńsk is Witold Liszkowski.
Gmina Giby is a rural gmina in Sejny County, Podlaskie Voivodeship, in north-eastern Poland, on the border with Belarus and Lithuania. Its seat is the village of Giby, which lies approximately 10 kilometres (6 mi) south of Sejny and 103 km (64 mi) north of the regional capital Białystok.
Babańce is a village in the administrative district of Gmina Sejny, within Sejny County, Podlaskie Voivodeship, in north-eastern Poland, close to the border with Lithuania. It lies approximately 4 kilometres (2 mi) north-west of Sejny and 114 km (71 mi) north of the regional capital Białystok.
Berżałowce-Gajówka is a village in the administrative district of Gmina Sejny, within Sejny County, Podlaskie Voivodeship, in north-eastern Poland, close to the border with Lithuania. It lies approximately 7 kilometres (4 mi) south-east of Sejny and 107 km (66 mi) north of the regional capital Białystok.
Berżniki is a village in the administrative district of Gmina Sejny, within Sejny County, Podlaskie Voivodeship, in north-eastern Poland, close to the border with Lithuania. It lies approximately 7 kilometres (4 mi) south-east of Sejny and 109 km (68 mi) north of the regional capital Białystok. Berżniki, like Sejny, has been inhabited by Lithuanians since its beginning.
Berżniki-Folwark is a village in the administrative district of Gmina Sejny, within Sejny County, Podlaskie Voivodeship, in north-eastern Poland, close to the border with Lithuania.
Gryszkańce is a village in the administrative district of Gmina Sejny, within Sejny County, Podlaskie Voivodeship, in north-eastern Poland, close to the border with Lithuania. It lies approximately 2 kilometres (1 mi) west of Sejny and 112 km (70 mi) north of the regional capital Białystok.
Kolonia is a village in the administrative district of Gmina Sejny, within Sejny County, Podlaskie Voivodeship, in north-eastern Poland, close to the border with Lithuania.
Kolonia Sejny is a village in the administrative district of Gmina Sejny, within Sejny County, Podlaskie Voivodeship, in north-eastern Poland, close to the border with Lithuania.
Marynowo-Kolonia is a village in the administrative district of Gmina Sejny, within Sejny County, Podlaskie Voivodeship, in north-eastern Poland, close to the border with Lithuania. It lies approximately 5 kilometres (3 mi) west of Sejny and 110 km (68 mi) north of the regional capital Białystok.
Wiżajny is a village in Suwałki County, Podlaskie Voivodeship, in north-eastern Poland, close to the border with Lithuania. It is the seat of the gmina called Gmina Wiżajny. It lies approximately 35 kilometres (22 mi) north of Suwałki and 143 km (89 mi) north of the regional capital Białystok.
Poland 
