Family name Jam (鑫 
, Jam 
, ジャム 
, among others...) , in the entire world, is a widespread last name. The family name Jam is characteristic of Reunion, where it is quite a common surname, China, and United Arab Emirates (explore the name in all countries). Not in comparison with a country's population, this name is the most popular in China, Pakistan, and India. More frequently, Jam is the forename as well as the last name.
| VARIANT | COUNTRY |
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| 鑫 | China |
| Jam | Saudi Arabia, India, Indonesia, Pakistan, China |
| ジャム | Japan |
| جام | Saudi Arabia, Iraq, Sudan, Iran, Algeria |
| Джем | Russia, Bulgaria, Belarus, Armenia, Ukraine |
| jam rawal Ruler of Kutch from 1524–1548 (b. 1480) |
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| chane sprinze jam Holocaust victim, b. 1877-11-26 (b. 1877) |
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| sure golde jam holocaust victim, b. 1892-11-28, AT (b. 1892) |
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| rifka jam holocaust victim, b. 1894-02-05, AT (b. 1894) |
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| jam borgstädt DE (b. 1891) |
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| schaul jam holocaust victim, b. 1901-07-08, AT (b. 1901) |
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jam mehtab hussain dahar Pakistani politician, PK (b. 1953) |
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jimmy jam American songwriter, producer, US (b. 1959) |
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| melanie jam holocaust victim, b. 1909-10-05, AT (b. 1909) |
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jam el mar German musician, DE (b. 1960) |
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jam master jay American musician (1965–2002), US (b. 1965) |
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lukar jam Tibetan poet, IN (b. 1969) |
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kia jam film producer, US (b. 1970) |
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jam mir kamal khan alyani Pakistani politician, PK (b. 1972) |
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nicky jam American singer, US (b. 1981) |
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