| Onuškis | |
| Settlement Type: | Town |
| Pushpin Map: | Lithuania |
| Pushpin Label Position: | left |
| Pushpin Map Caption: | Location of Onuškis |
| Coordinates: | 54.4861°N 24.5917°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Lithuania |
| Subdivision Type1: | Ethnographic region |
| Subdivision Name1: | Aukštaitija |
| Subdivision Type2: | County |
| Subdivision Name2: | Vilnius County |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Trakai district municipality |
| Subdivision Type4: | Eldership |
| Subdivision Name4: | Onuškis eldership |
| Subdivision Type6: | Capital of |
| Subdivision Name6: | Onuškis eldership |
| Population Total: | 519 |
| Population As Of: | 2011 |
| Timezone: | EET |
| Utc Offset: | +2 |
| Timezone Dst: | EEST |
| Utc Offset Dst: | +3 |
Onuškis is a small town in Lithuania in the Trakai district municipality, around 30km (20miles) from Trakai and 16km (10miles) south of Aukštadvaris. As of 2011, it had 519 inhabitants and was the seat for the Onuškis eldership.[1]
In the nineteenth century the Jews were the majority in the town. Before World War I about 80 to 90 Jewish families lived in there, but during the war years their number decreased to about 50 to 60 families.[2] On September 30, 1941, 1,446 Jews from Aukštadvaris, Lentavris, Onuškis, Rudziszki, Troki, Žydkaimis, and the surrounding areas were shot, after being abused, in the Varninkai Forest by Lithuanians from Aukštadvaris, Onuškis, and Lentvaris[3] [4]