Ulsnis

{{expand Danish|date=June 2023|topic=geo}}

{{Infobox German location

|name = Ulsnis
Ulsnæs

|image_photo = Ulsnis 5275.jpg

|image_coa = DEU Ulsnis COA.svg

|coordinates = {{coord|54|34|N|9|45|E|format=dms|display=inline,title}}

|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 = [https://www.ulsnis.de/ www.ulsnis.de]

|mayor = Heidrun Karaca

|party =

}}

Ulsnis ({{langx|da|Ulsnæs}}) is a municipality in the district of Schleswig-Flensburg, in Schleswig-Holstein, Germany.