In Norse mythology, Narfi or Nörfi (Nǫrfi), also called Nörr (Nǫrr), is the father of Nótt, the personified night.
The form Nörr has been related to narouua, which occurs in the fragmentary Old Saxon Genesis poem in the phrase narouua naht. This and hence the giant's name, as first suggested by Adolf Noreen, may be a synonym for "night" or, perhaps more likely, an adjective related to Old English nearwe, "narrow", meaning "closed-in" and thus "oppressive".
Various scholars have argued that Snorri based his genealogy of Nótt on classical models. They relate Narfi to Erebus, which would make nipt Nera, used in "Helgakviða Hundingsbana I" for a Norn who comes in the night, an appellation derived from the Parcae, who were Erebus' daughters.