Yoan sits next to 3 phonetic neighbors — Johan, Juan, and Yohan are the closest matches by sound. Most share Yoan's French-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"God is gracious"
"Who is like God? (rhetorical affirmation of divine uniqueness)"
"full-grown man"
"gift of Yahweh"
"Spanish form of Jerome"
"gift of Isis"
"of the Fabian clan"
"victor, winner"
"oarsman, rower"
"people's champion"
"noble ruler, exalted"
"glorious power"
"Nile River"
"honoring God, to honor God"
"of the Claudian family, lame"
"of the night"
"one of the Franks (a Germanic tribe)"
"bright spirit, shining mind"
"my lamp, my light"
Similar sound: These names share phonetic patterns with Yoan — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Yoan.
Rhythm: Yoan is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.