Kowen sits next to 5 phonetic neighbors — Cohen, Cowan, and Owen are the closest matches by sound. Most share Kowen's Scottish/Irish Gaelic 'cobhan'-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"hollow, small cavity"
"modern invented compound name"
"sad, sorrowful"
"brushwood town"
"invented modern name"
"short form of Tyler or Tyson"
"of Mars, warlike"
"son of grace; graceful"
"modern invented name combining Jay and -ven"
"narrow strait"
"of the Caspian Sea"
"variant of Tyson, firebrand"
"man of law, lawyer"
"beautiful fragrance"
"from Britain, a Briton"
"Akan people of Ghana"
"wealthy guardian"
"young person, noble youth"
"gray-haired one from the valley"
"dark, dark-featured"
Similar sound: These names share phonetic patterns with Kowen — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Scottish/Irish Gaelic 'cobhan' origins, giving them the same cultural heritage as Kowen.
Rhythm: Kowen is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.