Bowan sits next to 4 phonetic neighbors — Bowen, Boden, and Bowden are the closest matches by sound. Most share Bowan's Welsh cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"son of Owen"
"scar"
"flat-bladed digging tool"
"tribute to composer Franz Joseph Haydn"
"of Mars, warlike"
"elaboration of Princeton, from Prince + ton"
"bright settlement"
"God is my judge + priceless/flourishing (Dan + Anthony)"
"strong, kingly"
"little seal"
"a rousing song of praise or national identity"
"creative variant of Isaiah"
"black youth"
"liberated (spiritual parallel to Nirvana)"
"to tame, subdue"
"little fire"
"language, voice"
"dark warrior, dark brown champion"
"dweller by the open land"
"brave, courageous"
Similar sound: These names share phonetic patterns with Bowan — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Welsh origins, giving them the same cultural heritage as Bowan.
Rhythm: Bowan is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.