Surnames beginning with OSA

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OSAA OSAB OSAC OSAD OSAE OSAF OSAG OSAH OSAI OSAJ OSAK OSAL OSAM OSAN OSAO OSAR OSAS OSAT OSAW OSAY OSAZ

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.