The centre of Kolding, with Koldinghus castle in the background.

Kolding is a seaport located at the head of Kolding Fjord in Kolding municipality, Region of Southern Denmark. It is a transportation, commercial, and manufacturing centre, and has numerous industrial companies, principally geared towards shipbuilding. The manufacturing of machinery and textiles and livestock export are other economically significant activities.

With a population of 89,071 (1 January 2010), the Kolding municipality is the seventh largest in Denmark. The city itself has a population of 57,197 (1 January 2011) and is also the seventh largest city in Denmark.

Kolding is well known as the location of the former royal castle of Koldinghus which was built in the 13th century. The castle is now a museum and tourist attraction.