Rudy sits next to 3 phonetic neighbors — Ruby, Rudi, and Rudie are the closest matches by sound. Most share Rudy's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"famous wolf"
"heavenly, sky royalty"
"weary, delicate (from Leah)"
"jasmine flower"
"seat of the eye, throne"
"from Britain, a Briton"
"rejoice"
"precious, beautiful"
"descendant of Corraidhín (little spear)"
"Bright, shining light; torch"
"name of God"
"bird, life-breath"
"light of the meadow"
"lioness, brave as a lion"
"heavenly flower of the night"
"supplanter; one who follows after"
"enlightenment, awakening"
"born at Christmas"
"she who intoxicates, great enchantress"
"heavenly (folk reinterpretation)"
"pretty, lovely"
Similar sound: These names share phonetic patterns with Rudy — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Germanic origins, giving them the same cultural heritage as Rudy.
Rhythm: Rudy is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.