| Official Name: | Alšėnai Eldership |
| Native Name: | Alšėnų seniūnija |
| Native Name Lang: | lt |
| Settlement Type: | Eldership |
| Coordinates: | 54.838°N 23.746°W |
| Subdivision Type: | Country |
| Subdivision Type1: | Ethnographic region |
| Subdivision Name1: | Suvalkija |
| Subdivision Type2: | County |
| Subdivision Name2: | Kaunas County |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Kaunas District Municipality |
| Seat Type: | Administrative centre |
| Seat: | Mastaičiai |
| Area Total Km2: | 57 |
| Population Total: | 3957 |
| Population Footnotes: | [1] |
| Population Density Km2: | auto |
| Population As Of: | 2021 |
| Timezone: | EET |
| Utc Offset: | +2 |
| Timezone Dst: | EEST |
| Utc Offset Dst: | +3 |
Alšėnai Eldership (Lithuanian: Alšėnų seniūnija) is a Lithuanian eldership, located in the southern part of Kaunas District Municipality.