Syanno

For the village in Poland, see Sianno.

Syanno or Senno^[a] is a town in Vitebsk Region, Belarus. It serves as the administrative center of Syanno District. It is located 58 km (36 mi) southwest of Vitebsk on the southern shore of Senno Lake. In 2018, its population was 7,092. As of 2025, it has a population of 6,974.^[1]

Syanno Сянно (Belarusian) Сенно (Russian)
Town
Flag Coat of arms
Syanno Location in Belarus
Coordinates: 54°48′N 29°42′E
Country	Belarus
Region	Vitebsk Region
District	Syanno District
First mentioned	1442
Elevation	176 m (577 ft)
Population  (2025)[1]
• Total	6,974
Time zone	UTC+3 (MSK)
Postal code	211117
Area code	+375 2135

History

The village is first mentioned in a document of 1442.^[2] Fairs were held there, and a lively hay market gave it its name (Russian: сено seno 'hay'). From the first half of the 17th century it belonged to the Sapieha family; from the second half of the 18th century, to the Ogińskis. In 1772 it became part of the Russian Empire.

In 1924, Senno became part of the Byelorussian Soviet Socialist Republic. During World War II, it was the site of a major tank battle in July 1941.^[3]

Notes

1. Belarusian: Сянно, romanized: Sianno; Russian: Сенно; Polish: Sienno; Lithuanian: Siano.