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)"
"princess of the water"
"deep affection, devotion"
"bird-like, relating to birds"
"freedom, the condition of being free"
"shade, shadow"
"youthful, downy-bearded"
"noble, of noble birth"
"pearl"
"knowledge, sacred wisdom"
"modern invented name with -ley suffix"
"torch, radiant"
"whole, universal"
"bright, shining one"
"who is like God?"
"a narrow path or road"
"scholar, learned one"
"from Ireland, Ireland"
"candle maker, candle merchant"
"sweet substance, beloved, precious"
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.