Until 1 January 2007 Aaskov Municipality was a municipality (Danish, kommune) in Ringkøbing County on the Jutland peninsula in west Denmark.
The municipality covered an area of 239 km2, and had a total population of 6,999 (2005).
Its latest mayor was Jørgen Jørgensen, a member of the Venstre (Liberal Party) political party.
On January 1, 2007 it was merged with former Aulum-Haderup, Herning, and Trehøje municipalities to form the new Herning municipality.
This created a municipality with an area of 1,336 km2 and a total population of 82,935 (2005).