Vilainiai Eldership
Vilainiai Eldership 
    Vilainių seniūnija  | |
|---|---|
Nevėžis valley nearby Apytalaukis  | |
Location of Vilainiai Eldership  | |
| Country | Lithuania | 
| Ethnographic region | Aukštaitija | 
| County | Kaunas County | 
| Municipality | Kėdainiai District Municipality | 
| Administrative centre | Vilainiai | 
| Area | |
 • Total  | 179 km2 (69 sq mi) | 
| Population  (2011)  | |
 • Total  | 3,618 | 
| • Density | 20/km2 (52/sq mi) | 
| Time zone | UTC+2 (EET) | 
| • Summer (DST) | UTC+3 (EEST) | 
Vilainiai Eldership (Lithuanian: Vilainių seniūnija) is a Lithuanian eldership, located in the central-northern part of Kėdainiai District Municipality.
Eldership was created in 2001, as a result of the merging of Aristava Eldership and part of Kėdainiai City Eldership.