Hafnarfjörður, officially Hafnarfjarðarkaupstaður, is a port town and municipality in Iceland, located about 10 km (6 mi) south of Reykjavík. The municipality consists of two non-contiguous areas in the Capital Region, on the southwest coast of the country. At about 30,000 inhabitants, Hafnarfjörður is the third-most populous city in Iceland after Reykjavík and Kópavogur. It has established local industry and a variety of urban activities, with annual festival events.

Iceland is a Nordic island country between the North Atlantic and Arctic Oceans, on the Mid-Atlantic Ridge between North America and Europe. It is linked culturally and politically with Europe and is the region's most sparsely populated country. Its capital and largest city is Reykjavík, which is home to about 36% of the country's roughly 380,000 residents. The official language of the country is Icelandic.