Unterbözberg

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

languages = German
canton = Aargau
iso-code-region = CH-AG
district = Brugg
lat_d=47|lat_m=29|lat_NS=N|long_d=8|long_m=9|long_EW=E
postal_code = 5224
municipality_code = 4119
area = 6.11
elevation = 507|elevation_description=
population = 703|populationof = December 2006 | popofyear = 2006
website = www.unterboezberg.ch
mayor = |mayor_asof=|mayor_party=
mayor_title = |list_of_mayors =
places =
demonym =
neighboring_municipalities= Effingen, Gallenkirch, Linn, Oberbözberg, Riniken, Umiken, Villnachern
twintowns = |

Unterbözberg is a municipality in the district of Brugg in the canton of Aargau in Switzerland.