Surname Jaafar (جعفر 
, Jaafar 
, Джафар 
) , around the world, is a widespread family name. The family name Jaafar is habitual in Lebanon, where it is a common surname, Malaysia, and Brunei (explore the name in all countries). Measured by absolute frequency, it is commonest in Malaysia, Sudan, and Egypt. More frequently, Jaafar is the forename as well as the last name.
| VARIANT | COUNTRY |
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| جعفر | Iran, Syria, Iraq, Sudan, Egypt |
| Jaafar | Lebanon, Morocco, Iraq, Nigeria, Malaysia |
| Джафар | Azerbaijan, Tajikistan, Russia, Kazakhstan, Ukraine |
| ג'עפר | Israel |
| jaafar bin haji muhammad Malaysian politician, MY (b. 1838) |
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| mustapha jaafar (b. 1862) |
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naceur ben jaafar Tunisian politician and activist, TN (b. 1923) |
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| dato' seri megat jaafar Sultan of Perak, MY (b. 1901) |
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kamaruddin jaafar Malaysian politician, MY (b. 1951) |
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johan jaafar MY (b. 1953) |
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| aman ramli jaafar actor, writer and director, MY (b. 1918) |
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mariam jaafar Singaporean politician, SG (b. 1977) |
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| jaafar hussin (b. 1923) |
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| rokiah jaafar (b. 1925) |
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| jaafar hassan (b. 1926) |
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jaafar sadeq pasha |
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| jaafar hussein (b. 1931) |
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jazeman firhan jaafar Malaysian racing driver, MY (b. 1992) |
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| aziz jaafar SG (b. 1935) |
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