Surnames beginning with CI

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CIA CIB CIC CID CIE CIF CIG CIH CII CIK CIL CIM CIN CIO CIP CIR CIS CIT CIU CIV CIW CIZ

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.