Marianna sits next to 5 phonetic neighbors — Mariana, Marianne, and Arianna are the closest matches by sound. Most share Marianna's Italian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"grace and drop of the sea (Maria + Anna)"
"hidden channel, valley of wolves"
"strong, vigorous"
"queenly dignity, regal bearing"
"God is my help"
"deep affection, devotion"
"beloved child"
"gracious judge"
"from the Danish valley passage"
"new star meadow"
"Tatas homestead, cheerful settlement"
"of the sun"
"bright woodland"
"maiden, girl"
"descended from Jupiter"
"peace, love (symbolic)"
"calming, soothing (by association with the herb)"
"free man, free woman"
"life"
"variant of Jackie or Casey"
Similar sound: These names share phonetic patterns with Marianna — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin/Hebrew compound origins, giving them the same cultural heritage as Marianna.
Rhythm: Marianna is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.