Berlin sits next to 4 phonetic neighbors — Merlin, Harlin, and Ferlin are the closest matches by sound. Most share Berlin's German-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"small marsh, swampy area"
"symbol of peace and wisdom"
"bright meadow (Z + leigh/leah)"
"wise one"
"life and grace combined"
"lord, master (feminine)"
"supplanter, one who follows at the heel"
"mountain range, saw-toothed peaks"
"waterfall, stream"
"free woman, feminine form of Charles"
"God is gracious"
"gracious gift from God"
"whole, universal (Emma) + meadow (Lee)"
"from Zaria, princess of the city"
"grace, kindness"
"magical, illusory beauty"
"dew of God, God's dew"
"sky, heaven"
"victory, triumph"
"feminine diminutive of Antoine/Anthony"
"to ascend, to rise"
Similar sound: These names share phonetic patterns with Berlin — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old Slavic origins, giving them the same cultural heritage as Berlin.
Rhythm: Berlin is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.