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• odisharia – senaki, martvili, saodishario, nosiri, sergiethi, gatchedili, nalephsao, tchaburtha, jgali
• odisheli – senaki
• othkhozoria – zugdidi, chkhorodsqhu, senaki, dsalenjikha, darcheli, thaia, orulu, theklathi, ingiri, menji, tqhviri, mukhuri, khabume, jgali, jvari
• othkhvani – chhkhoria
• okujava – zugdidi, martvili, big dsqhoni, thamakoni, gatchedili, khetha, gurdzemi
• onchkholia – this surname is restored by the place-name saonchkholo/saanchkholo, hills in nashamgu
• orzolia – orsantia, akhalkakhathi
• orzhonia – in megrelia the old settlers are rare. There are refugees in zugdidi and senaki
• oqhujava – zugdidi, dsalenjikha, chkhorodsqhu, rukhi, zana, tsaishi, akhalkakhathi, orulu, darcheli, kirtskhi, first edseri, lower chkhorodsqhu, sajijao, tchithadsqhari, rukhi, tsizethi, ledgebe
• ochigava – abasha, senaki, sephiethi, gejethi, dsqhemi
• ochkhikidze – lower qvaloni