Owen sits next to 3 phonetic neighbors — Rowan, Bowen, and Quinn are the closest matches by sound. Most share Owen's Welsh cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"well-born, noble"
"full of goodness"
"slender, beautiful"
"boundary stone"
"God is gracious"
"sunrise, east"
"one who is reborn"
"torch, shining light"
"beautiful birth, beloved child"
"shape-shifting water spirit"
"to be well, to have worth"
"divine grace"
"night life; beautiful night (from Arabic roots)"
"pledged to God"
"ivy climbing plant"
"blessing, unmerited favor"
"from Rome, Roman woman"
"sea and sky"
"associated with love, beauty, and art"
"grey fortress"
"my father is joy"
Similar sound: These names share phonetic patterns with Owen — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin via Welsh origins, giving them the same cultural heritage as Owen.
Rhythm: Owen is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.