The ARoS Aarhus Kunstmuseum is an art museum in Aarhus, Denmark. The museum was established in 1859 and is the oldest public art museum in Denmark outside Copenhagen. On 7 April 2004, ARoS Aarhus Kunstmuseum opened with exhibitions in a brand new modern building, 10 stories tall with a total floor area of 20,700 m² and designed by Danish architects Schmidt Hammer Lassen. Today, ARoS is one of the largest art museums in Northern Europe with a total of 980,909 visitors in 2017.

Aarhus is the second-largest city in Denmark and the seat of Aarhus Municipality. It is located on the eastern shore of Jutland in the Kattegat sea and approximately 187 kilometres (116 mi) northwest of Copenhagen.