In Norse mythology, Dvalin is a dwarf who appears in several Old Norse tales and kennings. The name translates as "the dormant one" or "the one slumbering" (akin to the Danish and Norwegian "dvale" and Swedish "dvala", meaning "sleep", "unconscious condition" or "hibernation"). Dvalin is listed as one of the four stags of Yggdrasill in both Grímnismál from the Poetic Edda and Gylfaginning from the Prose Edda.
In the Poetic Edda poem Völuspá, Dvalin is mentioned as a name in the listing of dwarves, and again in a later stanza as a leader taking a host of dwarves from the mountains to find a new dwelling place:
"The rocks they left, and through wet lands
They sought a home, in the fields of sand"
In Hávamál, Dvalin is said to have introduced the writing of runes to the dwarves, as Dain had done for the elves and Odin for the gods.
In Alvíssmál, a kenning for the sun is listed as the "deceiver of Dvalin", referring to the sun's power of turning dwarves into stone. In skaldic poetry, "Dvalin's drink" is used as a kenning for poetry, since the mead of poetry was originally created by the dwarves.
In Fáfnismál, during a discussion between Sigurd and Fafnir concerning the minor Norns (apart from the three great Norns), those who govern the lives and destinies of dwarves are also known as "Dvalin's daughters".
In Hervarar saga, Dvalin is one of a pair of dwarves (including Durin) who forged the magic sword Tyrfing.
In the Sörla þáttr, an Icelandic short story written by two Christian Priests in 15th century, Dvalin is the name of one of the four dwarves (including Alfrigg, Berling and Grer) who fashioned a necklace which was later acquired by a woman called Freyja, who is King Odin's concubine, after she agreed to spend a night with each of them.