Kopervik is the largest city on the island Karmøy in the county of Rogaland in Norway. It has around 9000 inhabitants and is the centre of administration for the municipality of Karmøy.
Kopervik was a municipality with city status from 1866 to 1965, when it merged with seven other municipalities to create the municipality of Karmoy.
In 1996, it regained its city status following a change of law that made it easier to gain such status. It is one of three cities in Karmøy. It is a transport hub for scheduled boats going north to Bergen and south to Stavanger. The main industries are aluminium smelting and fisheries.
According to legend, King Sverre I of Norway ordered the construction of a wooden castle in the ness in the entrance to the harbour. A part of Kopervik is therefore called Treborg, literally meaning "wooden castle". There is however no evidence of its existence.
Kopervik was also home to Tormod Torfæus, appointed as the official Royal Norwegian historian to the Danish king.
Kopervik now contains many of Karmøy's centre points, for example the council house, the cinema and a shopping street.
