In Norse mythology, Sessrúmnir is the hall of the goddess Freya located in Fólkvangr, a field where Freya receives half of those who have fallen in battle; it is also the name of a ship.
Both the hall and the ship are mentioned in the prose Edda, written in the 13th century by Snorri Sturluson. Several academic theories have been formulated about a potential connection between the hall and the ship.
In the 24th chapter of the book Gylfaginning, part of the prose Edda, Sessrúmnir is specifically referred to as a hall. After describing Fólkvangr, High tells Gangleri (disguised as King Glyfi) that Freya has a hall of her own called Sessrúmnir and that it is very large and majestic.
In the 20th chapter of the book Skáldskaparmál also part of the prose Edda, the Sessrúmnir is mentioned. Also in the following chapter, we are given the means of referring to Freya, including a reference of Sessrúmnir: "possessor of the fallen and of Sessrúmnir". In the 75th chapter, Sessrúmnir is mentioned within a list of ship names.