Surnames beginning with OKO

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OKOA OKOB OKOC OKOD OKOE OKOG OKOI OKOJ OKOK OKOL OKOM OKON OKOO OKOP OKOR OKOS OKOT OKOU OKOW OKOY

Surnames shown in bold text represent around 90% of the population of Great Britain. All other names are very uncommon in the UK and we are unlikely to have any useful data on them.