Líf and Lífþrasir
In Norse mythology, Líf (identical with the Old Norse noun meaning "life, the life of the body") and Lífþrasir (Old Norse masculine name from líf and þrasir and defined by Lexicon Poëticum as "Livæ amator, vitæ amans, vitæ cupidus" "Líf's lover, lover of life, zest for life"), sometimes anglicized as Lif and Lifthrasir, female and male respectively, are two humans who are foretold to survive the events of Ragnarök by hiding in a wood called Hoddmímis holt and, after the flames have abated, to repopulate the newly risen and fertile world.
Source: Wikipedia, Líf and Lífþrasir. Text licensed CC BY-SA 4.0. Not endorsed by or affiliated with Wikipedia or the Wikimedia Foundation.