Runkesten, Rumskulla, Rocking stone in Rumskulla, Sweden.

Runkesten is a glacial boulder in the forest near Rumskulla, Småland, measuring about 5.5 m wide, 6.5 m long and 4 m high. It rests on a stone base that allows it to rock, and a sign at the site calls it one of the world's largest movable objects, a claim that is not documented.

During the Quaternary, northern Europe was covered by ice at least four times. The inland ice, two to three kilometres thick, carried large rock blocks southward; when it melted about 10,000 to 12,000 years ago, the Runkesten was left on the surface. It is registered as RAÄ-Nr. Rumskulla 51:1.

A sign at the stone recounts a legend in which a giant threw the Runkesten here, threatening to destroy anyone who overturned it. The same sign calls the boulder one of the world's largest movable objects, a claim not documented elsewhere.

A marked hiking trail of approximately 600 meters connects the gravel parking area along Mariannelundsvägen to the stone. The path passes through woodland and is straightforward to follow.

A sign at the site calls Runkesten one of the world's largest movable objects, a claim the sources do not verify. The stone is about 5.5 m wide, 6.5 m long and 4 m high, and it rests on a stone base that lets it rock.