| Official Name: | Lavysas |
| Settlement Type: | Village |
| Pushpin Map: | Lithuania |
| Pushpin Map Caption: | Location in Lithuania |
| Subdivision Name: |  Lithuania |
| Subdivision Type2: | County |
| Subdivision Name2: | Alytus County |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Varėna District Municipality |
| Subdivision Type4: | Elderships |
| Subdivision Name4: | Marcinkonys Eldership |
| Population As Of: | 2021[1] |
| Population Total: | 5 |
| Timezone: | EET |
| Utc Offset: | +2 |
| Timezone Dst: | EEST |
| Utc Offset Dst: | +3 |
| Coordinates: | 54.1694°N 24.4072°W |
Lavysas is a village in Varėna District Municipality, Alytus County, in southeastern Lithuania. According to the 2021 census, the village had a population of 5 people.[2] In 1921–1945, the village was within the borders of the Second Polish Republic.
Lavysas is located about from Varėna, from Marcinkonys, from Žiūrai (the nearest settlement).
The name Lavysas comes from the name of the nearby Lavysas Lake.[3]