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)"
"holy peacemaking, blessed reconciliation"
"pure (via Kayla/Katherine association)"
"woman from Mount Cynthus"
"bright, cheerful"
"from the oak wood"
"joyful"
"wealthy, possessor"
"woman from Magdala, high tower"
"divine gift"
"famous ruler"
"high, noble (Ali) + grace (Anna)"
"gentle, branch, to draw water"
"pure, clean"
"noble, exalted, high-born"
"supplanter, one who follows"
"weapon, mace"
"gray battle maiden"
"star that suddenly brightens"
"joy, happiness, gladness"
"honey bee + youthful (blend with Melissa)"
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.