Sandhamn (Swedish for "Sand Harbour") is a small settlement in the central-peripheral part of the Stockholm Archipelago approximately 50 km east of Stockholm.

One of the most important natural ports in the archipelago with easy access to the Swedish capital, Sandhamn has been popular for pleasure boating since the late 19th century. It is known for its tavern, its clubhouse, and, not the least, its harbour.

While the settlement only has a hundred permanent inhabitants, the number of residents increases to 2-3,000 during the summer. Sandhamn receives an additional 100,000 visitors annually.