Rosario sits next to 4 phonetic neighbors — Rosaria, Rosalie, and Rosa are the closest matches by sound. Most share Rosario's Spanish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"rosary, garland of roses"
"free one, woman from France/the Franks"
"sparkling, clear gem"
"honor, fame"
"from Laurentum, laurel place"
"my God has answered"
"modest, virtuous"
"gracious gift of God"
"from Lourdes, place of miracles"
"jade, precious stone (possible interpretation)"
"port, harbor"
"graceful meadow (Ana + Lee)"
"light, illumination"
"earth, land, soil"
"nickname of affection for G-names"
"lily flower"
"grace (via Hebrew Ana)"
"noble one, of noble kind"
"beloved, wished-for child"
"lover of horses, friend to horses"
Similar sound: These names share phonetic patterns with Rosario — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Spanish/Latin origins, giving them the same cultural heritage as Rosario.
Rhythm: Rosario is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.