Gregorio sits next to 3 phonetic neighbors — Gregory, Gregor, and Giorgio are the closest matches by sound. Most share Gregorio's Spanish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"watchful, alert, awake"
"purple gemstone (jacinth)"
"light, bringer of light"
"God has helped"
"powerful, warrior"
"healer"
"praiseworthy"
"born at Easter"
"God has made"
"treasurer, keeper of treasure"
"labor-power, work-ruler"
"famous warrior"
"open, wide"
"garden of God, orchard"
"well-born, of noble birth"
"of the mountains, mountain dweller"
"God strengthens"
"Italian form of Paul"
Similar sound: These names share phonetic patterns with Gregorio — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Gregorio.
Rhythm: Gregorio is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.