Infobox River | river_name = Dysna
caption = Dysna in Belarus, near Dzisna town
Ignalina district municipality
length = 176 km
discharge = 3.59 m³/s
watershed = 8,193 km²
Dysna ( _ru. Дисна) is a river that flows through
Lithuaniaand Belarusinto the DaugavaRiver near Dzisna town.
The river originates from Lake Parsvėtas, near
Dūkštas, Ignalina district municipality. It flows through Lake Dysnaiand Lake Dysnykštis. Near Kačergiškėsit turns east and for 39 km flows on the Lithuanian- Belarusian border. The length in Lithuania is 17 km. One of the lakes in the basin area is the Lake Drūkšiaithat supports Ignalina Nuclear Power Plant.
Largest tributaries are Birvėta, Golbica, Janka, Berezovka, Mnuta.
* cite web| url=http://aaa.am.lt/VI/index.php#r/1662 |title=Dauguvos baseinas |date=2003-04-07 |publisher=Environmental Protection Agency at the Ministry of Environment of the Republic of Lithuania
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