Aarhus Oliefabrik A/S (Colloq.: Oliemøllen) was a company and oil mill in Aarhus, Denmark. Established in 1871 it was one of the largest employers and exporters in the city through the late 19th and early 20th centuries. In 2005, the company merged with the Swedish company Karlshamns AB, forming today's AarhusKarlshamn (AAK).