St. Antönien Ascharina

Infobox Swiss town
subject_name = St. Antönien Ascharina
municipality_name = St. Antönien Ascharina
municipality_type = former
imagepath_coa = St Antönien Ascharina wappen.svg|pixel_coa=


languages =
canton = Graubünden
iso-code-region = CH-GR
district = Prättigau/Davos
lat_d=46|lat_m=59|lat_NS=N|long_d=9|long_m=38|long_EW=E
postal_code = 7212
municipality_code =
area = 49.63
elevation = 937|elevation_description=
population = 1390|populationof=2005
website =
mayor = |mayor_asof=|mayor_party=
mayor_title = |list_of_mayors =
places =
demonym =
neighboring_municipalities= Küblis, Luzein, Saas im Prättigau, Sankt Antönien
twintowns = |

St. Antönien Ascharina is a former municipality in the Swiss canton of Graubünden. Until 1953, the municipality was known as Ascharina.

The municipalities of St. Antönien Ascharina and St. Antönien have voted with a large majority to combine the two municipalities, effective January 1, 2007.

The municipality is German-speaking.