Where does “Louanna” come from?

Louanna (English) comes from English Anna, from Late Latin Anna, from Koine Greek Ἄννα, from Hebrew חַנָּה — grace, gracious.

Ancestry of “Louanna”, step by step

Louanna traces back through two separate lines of ancestry.

via English Anna

StepLanguageWordMeaning
1EnglishAnnaA prophetess in the New Testament
2Late LatinAnna
3Koine GreekἌννα
4Hebrewחַנָּהgrace, gracious

via English Lou

StepLanguageWordMeaning
1EnglishLouA Southeast Admiralty Islands language spoken on Lou Island of Manus Province, Papua New Guinea
Every word from Hebrew חַנָּה