Porevit, Porovit or Borovit (Latin: Poreuit, Perevithus, Poreuith, Porevithum, Poreuithũ, Borveit[1][2]) is a Slavic god with unknown functions mentioned in only two sources: Gesta Danorum and in Knýtlinga saga.

Saxo describes that in this gord (stronghold) there were three temples dedicated to Rugiaevit, Porevit and Porenut.

[1] The same information is then given by the Knýtlinga saga, which lists Porevit in the distorted form Puruvit.

He also points out that twins often have contradictory features; Porevit is considered a "positive" twin whose name should be understood as "Lord of strength, Lord who can cope with everything", while Porenut is considered a "negative" twin and translates his name as "Lord in need of support", reading the suffix -nut as -nud and connecting it with the Old Polish nuda and the German Nut meaning "need, compulsion".

[10] Andrzej Szyjewski is also in favor of combining the first part of both Porevit and Porenut with the word pora.

[8] There is an assumption that both Saxo and the author of the Knýtlinga saga used one common, unpreserved source when describing the deities of Charenza.

[14] The Porevit/Porovit reading is supported by the fact that in Saxo's Latin, and Old Icelandic, the Slavic initial ⟨p⟩ was always rendered as p, but it is possible that this theonym was deformed before it found its way into the Gesta Danorum and Saga.

Additionally, Slavic bor "(conifer) forest" in German records is rendered as -bure-, -buru-, -buri-, cf.

Attempts have also been made to read this theonym literally, e.g. as T(o)ropiec from *trepati "to flutter",[20] or to regard it as a loan from Celtic Taranis "Celtic god of the storm" (allegedly to the Proto-Slavic *Taranъ "god of the storm").