Giuliana sits next to 4 phonetic neighbors — Juliana, Giulia, and Julianna are the closest matches by sound. Most share Giuliana's Italian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"youthful, belonging to the Julian family"
"Mary of Solitude (Maria de la Soledad)"
"grace, merciful"
"light"
"child of the moon"
"beautiful"
"of Milan, cosmopolitan"
"beautiful rose"
"beloved, little Mary"
"young warrior, little warrior"
"defender of men"
"Christian woman"
"to be of worth, to be strong"
"hope"
"of the Antonius family"
"the other, foreign (one)"
"dark, rich (possibly referring to the dark Adriatic waters)"
"luminous glow, energy field"
"mountain of whiteness"
"middle of the plain"
Similar sound: These names share phonetic patterns with Giuliana — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Giuliana.
Rhythm: Giuliana is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.