Dayvon sits next to 3 phonetic neighbors — Devon, Davon, and Daevan are the closest matches by sound. Most share Dayvon's Celtic-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"variant of Devon: from the Devon region"
"joyful outcry"
"cheerful, jovial"
"my inheritance"
"little raven"
"strength, resolve, hardness (word name)"
"champion (Irish-inspired)"
"Geirrapos island, grassy island"
"royal dignity, greatness, grandeur"
"spirit, vigorous enthusiasm, flair"
"short form of Trevor meaning large homestead"
"dark one's son (from Old Norse kol, coal)"
"the koa tree (strength)"
"of the mountains, mountain dweller"
"God given, divine gift"
"modern invented name"
"the kingdom of Ciar, County Kerry"
"twin"
"high ground, elevated place"
"short form of Tyler or Tyson"
"God is gracious (from Shawn/Sean)"
Similar sound: These names share phonetic patterns with Dayvon — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Celtic origins, giving them the same cultural heritage as Dayvon.
Rhythm: Dayvon is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.