Yvonne sits next to 3 phonetic neighbors — Ivonne, Yvette, and Simone are the closest matches by sound. Most share Yvonne's French-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"yew wood, yew tree"
"to rejoice, joyful"
"tribe woman, woman of the race"
"God is my oath"
"bright + spring"
"Soft-haired, youth"
"gracious gift, star of the sea"
"lord, master"
"lily flower"
"warlike, brave"
"brave as a lion"
"lovable, worthy of love"
"merry, joyful"
"God is salvation, God saves"
"clarity, clearness"
"son of Nicholas"
"of the air"
"romantic love, the god of love"
"child of light"
"honey"
"son of Madoc, fortunate"
Similar sound: These names share phonetic patterns with Yvonne — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Germanic iv origins, giving them the same cultural heritage as Yvonne.
Rhythm: Yvonne is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.