Stykkishólmur is a town and municipality situated in the western part of Iceland, in the northern part of the Snæfellsnes peninsula. It is a center of services and commerce for the area. Most of the people make their living from fishing and tourism. A ferry called Baldur goes over the Breiðafjörður fjord to the Westfjords. It also is the gateway to Flatey. The origin of Stykkishólmur can be traced to its natural harbor. The location became an important trading post early in Iceland's history. From that time trading has been at the heart of the settlement's history.
In the 1986 novel Red Storm Rising, Stykkishólmur is the site of a landing by US Marines tasked with liberating Iceland from occupying Soviet forces.
Stykkishólmur is the main setting in the short story Tussenlanding (Transfer) from the 1991 short story collection De Matador en andere verhalen by Tim Krabbé. The story features a Dutchman coming to Iceland in hope to start a relationship with an Icelandic woman he barely knows.
The town was the filming location for the depictions of Nuuk, Greenland in the 2013 movie The Secret Life of Walter Mitty.