Surname Vahdat (وحدت 
, Vahdat 
) , around the world, is quite a rare last name. The cognomen Vahdat is habitual in Iran, where it is quite a rare surname, Afghanistan, and Australia, where it is a rare surname. In absolute terms, this name is the most popular in Iran, Afghanistan, and the United States. Likewise, Vahdat is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| وحدت | Iran, Afghanistan, Iraq, Turkey |
| Vahdat | Canada, Sweden, Australia, United States, Iran |
| sahar vahdat researcher |
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| noushin vahdat researcher (ORCID 0000-0003-0924-2332) |
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| linda t vahdat researcher |
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| vahdat abdelzad researcher |
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| seyed ebrahim vahdat researcher ORCID ID = 0000-0002-0117-7452 |
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| vahdat abdelzad Ph.D. University of Ottawa 2017 |
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| katayoun vahdat researcher |
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| armin saeedi vahdat researcher |
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| shahabeddin vahdat researcher |
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| vahab vahdat researcher (ORCID 0000-0001-7831-7567) |
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| m. amin vahdat Ph.D. University of California, Berkeley 1998 |
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| pej vahdat Iranian-American actor, US (b. 1982) |
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| dan vahdat |
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