| Senoji Varėna | |
| Settlement Type: | Village |
| Pushpin Map: | Lithuania |
| Pushpin Map Caption: | Location of Senoji Varėna |
| Pushpin Label Position: | left |
| Coordinates: | 54.25°N 57°W |
| Subdivision Type: | Country |
| Subdivision Type1: | Ethnographic region |
| Subdivision Name1: | Dzūkija |
| Subdivision Type2: | County |
| Subdivision Name2: | Alytus County |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Varėna district municipality |
| Subdivision Type4: | Eldership |
| Subdivision Name4: | Varėna eldership |
| Established Title: | First mentioned |
| Established Date: | 1413 |
| Population Total: | 1,073 |
| Population As Of: | 2021 |
| Timezone: | EET |
| Utc Offset: | +2 |
| Timezone Dst: | EEST |
| Utc Offset Dst: | +3 |
Senoji Varėna is an old village in Varėna district municipality, near Merkys River and Rivulet Varėnė confluence, 4 kilometers north of Varėna, on the road Vilnius–Druskininkai. The village was mentioned for the first time in Teutonic letters in the year 1413.
It was the hometown of the most famous Lithuanian painter and composer Mikalojus Konstantinas Čiurlionis.
The village name comes from the Varėnė river which goes through it. There is a legend in folk stories that name Varėna comes from goddess Varėnė who was taking care of hunters and fishermen living by the river.