Cognomen D'Costa (D'Costa 
) , around the globe, is a common surname. The last name D'Costa is habitual in Western Asia, particularly United Arab Emirates, where it is quite a common surname, Bahrain, where it is quite a rare surname, and Kuwait. In absolute terms, it is commonest in India, Bangladesh, and United Arab Emirates.
| VARIANT | COUNTRY |
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| D'Costa | United Arab Emirates, Kenya, Australia, India, Bangladesh |
| enrique otero d'costa (b. 1883) |
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| albert vivian d'costa (b. 1906) |
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george lincoln d'costa singer/guitarist of band Artcell |
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| jean d'costa Jamaican writer and linguist, JM (b. 1937) |
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| gavin d'costa British theologian, KE (b. 1958) |
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| anthony p. d'costa (b. 1957) |
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| martin d'costa cinematographer (b. 1974) |
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| sameer leonard d'costa Ph.D. The University of Chicago 2006 |
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| vanessa m d'costa researcher (ORCID 0000-0003-4340-7778) |
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| matthew d'costa researcher |
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| priya m d'costa researcher (ORCID 0000-0001-9500-4861) |
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| gustavo matamoros d'costa Colombian military officer |
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| sr felicita d'costa IN |
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| vanessa m d'costa |
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| wilfred charles d'costa IN |
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