Cognomen Uddin (Uddin 
, Уддин 
, উদ্দিন ) , throughout the world, is a prevalent last name. The family name Uddin is habitual in Oman, where it is a widespread surname, Bangladesh, and Qatar (explore the name in all countries). Not in comparison with a country's population, it is commonest in Southern Asia, particularly Bangladesh, India, and Pakistan. Much less frequently, Uddin is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Uddin | Saudi Arabia, Pakistan, Bangladesh, India, Oman |
| Уддин | Ukraine, Russia |
| উদ্দিন | Bangladesh |
| الدین | Saudi Arabia, United Arab Emirates, Egypt, Afghanistan, Sudan |
| keith uddin British record producer, GB (b. 1492) |
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| itesham uddin (b. 1730) |
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| johannes uddin Swedish priest, SE (b. 1902) |
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| ahmed tafiz uddin Bangladeshi politician (b. 1929) |
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| alfaz uddin Bangladeshi politician and former MP (b. 1932) |
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| motahar uddin Bangladeshi politician (1935-1974) (b. 1935) |
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| moyez uddin Bangladeshi politician (b. 1935) |
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| syed qumrul islam saleh uddin Bangladeshi politician (died 1983) (b. 1937) |
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| allama zia uddin Bangladeshi Deobandi Islamic Scholar (b. 1941) |
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| jurnalis uddin ID (b. 1937) |
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lucina q. uddin American neuroscientist |
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| md. rais uddin Bangladeshi judge (b. 1956) |
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| ashab uddin Retired Major General of Bangladesh Army (b. 1958) |
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| shafique uddin bangladeshi-British artist (b. 1962) |
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| md. saif uddin chess player (b. 1965) |
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