Catarina sits next to 3 phonetic neighbors — Katarina, Catalina, and Catherine are the closest matches by sound. Most share Catarina's Portuguese-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"pure"
"combination of Maria + Teresa"
"land of the Vitali/young cattle"
"modern phonetic invention"
"from Milan"
"flame, light"
"capricious, whimsical"
"joy, happiness, gladness"
"land of the Aryans"
"I only want you"
"dew of the sea (rosemary herb)"
"from Siena, orange-red earth pigment"
"bright, shining one"
"enjoyment of the best"
"God will add, God shall increase"
"variant of Mary, beloved"
"mistress, noblewoman"
"God is gracious (via Gianna/Giovanni)"
"I see the sun, sun goddess"
"he who holds firm to good"
Similar sound: These names share phonetic patterns with Catarina — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Catarina.
Rhythm: Catarina is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.