Gwen sits next to 4 phonetic neighbors — Gwyneth, Quinn, and Wren are the closest matches by sound. Most share Gwen's Welsh cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"white, fair, pure, blessed"
"burnt woodland clearing"
"strength, power"
"water lady, she who comes from the water"
"bright, shining one"
"to be of worth, to be strong"
"praised, she will be praised"
"counsel, decision"
"son of Finlay (surname origin)"
"reddish-brown earth color"
"blessed strife"
"soft, gentle, delicate"
"good luck, prosperity (symbolic)"
"pearl"
"divine radiance"
"God is just, my witness is God"
"lily flower, pure and beautiful"
"land of the Malay people"
"a narrow path or road"
"free man, free woman"
"son of the sea, great tide"
Similar sound: These names share phonetic patterns with Gwen — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Welsh origins, giving them the same cultural heritage as Gwen.
Rhythm: Gwen is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.