| Ulsnis Ulsnæs | |
| Image Coa: | DEU Ulsnis COA.svg |
| Coordinates: | 54.5667°N 54°W |
| Image Plan: | Ulsnis in SL.PNG |
| State: | Schleswig-Holstein |
| District: | Schleswig-Flensburg |
| Amt: | Süderbrarup |
| Elevation: | 5 |
| Area: | 19.81 |
| Postal Code: | 24897 |
| Area Code: | 04641 |
| Licence: | SL |
| Gemeindeschlüssel: | 01 0 59 094 |
| Website: | www.ulsnis.de |
| Mayor: | Heidrun Karaca |
Ulsnis (Danish: Ulsnæs) is a municipality in the district of Schleswig-Flensburg, in Schleswig-Holstein, Germany.