| Official Name: | Taučiūnai |
| Settlement Type: | Village |
| Pushpin Map: | Kėdainiai District Municipality#Lithuania |
| Pushpin Map Caption: | Location in Lithuania |
| Subdivision Name: |  Lithuania |
| Subdivision Type1: | County |
| Subdivision Name1: | Kaunas County |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Kėdainiai district municipality |
| Subdivision Type3: | Eldership |
| Subdivision Name3: | Vilainiai Eldership |
| Population As Of: | 2011 |
| Population Total: | 60 |
| Timezone: | EET |
| Utc Offset: | +2 |
| Timezone Dst: | EEST |
| Utc Offset Dst: | +3 |
| Coordinates: | 55.2831°N 24.0531°W |
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 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.
thumb|left|200px|Monument for Povilas Lukšys