Cognomen Datu (Datu 
, داتو, ดาตู 
) , in the world, is a common surname. The cognomen Datu is habitual in Philippines, where it is quite a common surname, United Arab Emirates, where it is quite a rare surname, and Qatar. Not in comparison with a country's population, it is the most numerous in Philippines, Indonesia, and Saudi Arabia. Also, Datu is the forename as well as the last name.
| victor datu (b. 1932) |
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| idelfonso datu chess player (b. 1972) |
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| jesus alfonso d datu researcher |
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| madonna damayanthie datu researcher |
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| kerwin datu doctoral candidate at the London School of Economics and Political Science |
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| prisasri kadrana sombo datu Indonesian politician (born 1991 in Toraja Utara), ID (b. 1991) |
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