Luca sits next to 4 phonetic neighbors — Luke, Lucas, and Luka are the closest matches by sound. Most share Luca's Italian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"man from Lucania"
"God is gracious (via John, Jack)"
"one who carries"
"little warrior"
"youthful, downy-bearded"
"God is gracious"
"loyal as a dog"
"from Sebastia, venerable"
"hay valley, hedged valley"
"man of prayer"
"one who carries the divine"
"fortunate, prosperous"
"Finnish person, Norseman"
"black gemstone; jet"
"Yahweh is God"
"independent thinker, non-conformist"
"name of God"
"servant of Jesus"
"story to be read, remarkable person"
"patrician, of noble birth"
"born on Sunday"
Similar sound: These names share phonetic patterns with Luca — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Luca.
Rhythm: Luca is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.