Tjuvholmen is a neighborhood in the borough Majorstuen in Oslo, Norway. It is located on a peninsula sticking out from Aker Brygge into the Oslofjord. It is located east of Filipstad and south of Vika. At the tip of the peninsula, next to the sculpture park, is an outdoor bathing area. The water leads out to the Inner Oslofjord. The area was bought by the shipyard Akers Mekaniske Verksted in the mid 19th century, who planned to build a drydock there.