Bowyn sits next to 4 phonetic neighbors — Owen, Bowen, and Rowan are the closest matches by sound. Most share Bowyn's Welsh cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"son of Owen, young warrior"
"strength, virtue, honor"
"well-born, youth"
"from the fortress"
"king, lord"
"rich in friends"
"son of Magg (pet form of Margaret)"
"born of the ocean wave"
"bright mind, shining spirit"
"son of Piers"
"one who works the earth"
"greatest"
"flowing water"
"son of the sea"
"poet, philosopher, wise man"
"noble strength"
"green, dark green (water)"
Similar sound: These names share phonetic patterns with Bowyn — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Welsh origins, giving them the same cultural heritage as Bowyn.
Rhythm: Bowyn is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.