Oles sits next to 4 phonetic neighbors — Ales, Olek, and Elis are the closest matches by sound. Most share Oles's Polish-origin cluster, so the rhythm and vowel shape carry across the list.
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"defender of the people (short form of Alexander)"
"Farmer; earth worker"
"blessed, fortunate"
"blessed, happy"
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"blessed"
"father"
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Similar sound: These names share phonetic patterns with Oles — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek via Slavic origins, giving them the same cultural heritage as Oles.
Rhythm: Oles is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.