Taučiūnai (formerly Russian: Тавчуны, Polish: Tauczuny, Tawczuny) is a village in Kėdainiai district municipality, in Kaunas County, in central Lithuania. According to the 2011 census, the village had a population of 60 people. It is located 2 kilometres (1.2 mi) from Aristava, close to the A8 highway, on the shore of the Juodkiškiai Reservoir. There is a monument for the first Lithuanian volunteer soldier Povilas Lukšys, who died near Taučiūnai in 1919.

Taučiūnai has been known since 1375. There was a manor till the mid-20th century. The Taučiūnai folwark belonged to the Medekšos and the Vyšniauskai families.

Historical population

Year Pop. ±% p.a. 1902 109 —     1923 166 +2.02% 1959 182 +0.26% 1970 192 +0.49% 1979 156 −2.28%	Year Pop. ±% p.a. 1987 137 −1.61% 1989 112 −9.58% 2001 99 −1.02% 2011 60 −4.88%
Source: 1902, 1923, 1959 & 1970, 1979, 1989, 2001, 2011

• Mockienė, Jurgita (24 January 2023) [2018]. "Povilas Lukšys". Visuotinė lietuvių enciklopedija (in Lithuanian). Mokslo ir enciklopedijų leidybos centras. Retrieved 19 March 2023.