Treshaun sits next to 5 phonetic neighbors — Deshawn, Reshawn, and Tremayne are the closest matches by sound. Most share Treshaun's Hebrew via Irish via African-American English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"God is gracious (via Shaun)"
"noble, exalted, lofty"
"son of Hugh"
"son of the wave, born of the sea"
"he who heals with herbs"
"playful one"
"the hidden one, the invisible"
"beloved, dear one"
"may God protect"
"dweller by the hedged forest"
"light, movement"
"sword/fire (brand element)"
"beautiful in character"
"A dark image or form following a person or object"
"brilliantly noble"
"from Renton, town name"
"to cry out, a wolf's cry"
"son of Stephen, one who wears the crown"
"good, virtuous"
"little one, shapely"
"noble desire"
Similar sound: These names share phonetic patterns with Treshaun — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew via Irish via African-American English origins, giving them the same cultural heritage as Treshaun.
Rhythm: Treshaun is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.