Aars or Års, is a Danish town with a population of 8,657 in Himmerland, Denmark. Administratively, Aars is the municipal seat of Vesthimmerland Municipality and biggest town of Vesthimmerland Municipality, Region Nordjylland since 2007 and it was also the seat of the mayor in the now abolished Aars Municipality. The town was founded in the 14th century. It is one of the four principal towns of Vesthimmerland, the other ones being Farsø, Løgstør and Aalestrup. Aars is a former railway town. It is currently the 76 largest city in Denmark just behind Ribe but in front of Helsinge on Zealand, Sjælland. It is the 11th biggest town/city in Region Nordjylland in front of Skagen but just behind Sæby. The town has the nickname Cimbri's town.

Vesthimmerland Municipality is a kommune in the North Jutland Region of Denmark. It covers an area of 768,08 km² (2013) and has a total population of 36,431 (2023). The Municipality borders Jammerbugt Municipality to the south and to the east it borders Rebild and Aalborg Municipality and to the south it borders Viborg Municipality and to the south-east it borders Mariagerfjord Municipality.