Roxas sits next to 3 phonetic neighbors — Rojas, Rocas, and Ajax are the closest matches by sound. Most share Roxas's Spanish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"red (from Spanish rojas)"
"lush valley"
"son of the servant of Saint John"
"settlement of Jay, from Jay + ton"
"settlement of the prince, princely estate"
"meadowland, fallow land"
"black-haired, dark one"
"hare's meadow, woodland clearing"
"griffin (mythical creature symbolizing strength)"
"broad clearing, wide meadow"
"son of Madoc (gift of God)"
"far-reaching, bringer of completion"
"noble, of good character"
"bridge town"
"variant of Tyson"
"wolf shield"
"son of the brave, warrior"
"place of the winding shore"
"chromium element"
"bear strength"
"dweller by the lime trees"
Similar sound: These names share phonetic patterns with Roxas — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Spanish origins, giving them the same cultural heritage as Roxas.
Rhythm: Roxas is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.