Billund Municipality (Danish: Billund Kommune) is a kommune in the centre of the Jutland Peninsula in Denmark. Formerly the municipality belonged to Ribe County. The new, merged municipality covers an area of 540.18 km², and has a total population of 27,021 (2023). Its mayor is Stephanie Storbank, a member of Venstre (Liberal Party) political party. The site of its municipal council is the town of Grindsted, which is the largest town in the municipality followed by the city of Billund.