The Anykšta is a river of Anykščiai district municipality, Utena County, in northeastern Lithuania. It flows for 13.8 kilometres and has a basin area of 144.9 km2.
The Anykšta is a left-bank tributary of the Šventoji, joining it in the town of Anykščiai.
The name Anykšta is of unknown origin. According to one theory, it could have been derived from Proto-Indoeuropean root *an-/*en- related to water.
It could also be cognate to Proto-Slavic *oněxъ ("their"), genitive plural case of *onъ/*ona/*ono ("he/she/it" respectively). Also, compare the name of the Šventoji river or the Saint river, what can besides indicate a territory mark.
References
LIETUVOS RESPUBLIKOS UPIŲ IR TVENKINIŲ KLASIFIKATORIUS (Republic of Lithuania- River and Pond Classifications) . Ministry of Environment (Lithuania). Accessed 2011-11-11.