Ridwan sits next to 4 phonetic neighbors — Redwan, Ridwan, and Rizwan are the closest matches by sound. Most share Ridwan's Arabic-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"God's pleasure and favor"
"worshipper, one devoted to God"
"God's pleasure, divine contentment"
"most noble, most honorable"
"long life, age"
"one who prevents harm"
"intelligent, bright-minded"
"treetop"
"inscribed tablet (Quranic)"
"gift of God"
"worshipper, devoted servant"
"son of Ham (Biblical)"
"worthy of praise"
"good friend, intimate companion"
"evening conversation companion"
"praiseworthy, highly praised"
"great, majestic, exalted"
"one who fights for the faith"
Similar sound: These names share phonetic patterns with Ridwan — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Arabic origins, giving them the same cultural heritage as Ridwan.
Rhythm: Ridwan is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.