Unterramsern

Infobox Swiss town
subject_name = Unterramsern
municipality_name = Unterramsern
municipality_type = municipality
imagepath_coa = Unterramsern-blason.png|pixel_coa=

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languages = German
canton = Solothurn
iso-code-region = CH-SO
district = Bucheggberg
lat_d=47|lat_m=7|lat_NS=N|long_d=7|long_m=29|long_EW=E
postal_code = 4588
municipality_code = 2463
area = 1.54
elevation = 475|elevation_description=
population = 198|populationof = December 2005 | popofyear = 2005
website =
mayor = |mayor_asof=|mayor_party=
mayor_title = |list_of_mayors =
places =
demonym =
neighboring_municipalities= Aetigkofen, Aetingen, Limpach (BE), Mühledorf, Mülchi (BE), Oberramsern
twintowns = |

Unterramsern is a municipality in the district of Bucheggberg, in the canton of Solothurn, Switzerland.