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"
"Italian form of Paul"
"holding fast, steadfast protector"
"fertile, productive"
"hyacinth flower"
"treasurer, keeper of treasure"
"famous warrior"
"who is like God?"
"God is gracious"
"of good race, noble"
"cheerful, jovial"
"God has helped"
"light, bringer of light"
"conquering, victorious"
"short form of Trevor meaning large homestead"
"shining army"
"God strengthens"
"who is like God"
"God has made"
"wounded in the thigh"
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.