Family name اردلان (اردلان 
, Ardalan 
) , worldwide, is quite a common cognomen. The cognomen اردلان is habitual in Iran, where it is quite a rare surname, Iraq, and Sweden, where it is a rare surname. In absolute terms, the name is most common in Iran, Iraq, and the United States. Likewise, اردلان is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| اردلان | Iran, Iraq |
| Ardalan | Iran, Iraq, United States, Sweden, Indonesia |
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مستوره اردلان Kurdish poet, IR (b. 1805) |
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علیقلی اردلان Iranian politician, IR (b. 1901) |
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داور اردلان Senior Producer of NPR's Identity and Culture Unit, IR (b. 1964) |
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| علی اردلان Iranian politician, IR (b. 1914) |
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پروین اردلان Iranian writer and activist, IR (b. 1967) |
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نیلوفر اردلان Iranian footballer, IR (b. 1985) |
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| فرهاد اردلان Iranian physicist, IR (b. 1939) |
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فخرالملک اردلان IR |
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| حمیدرضا اردلان Iranian author, composer, academic (born 1959), IR (b. 1959) |
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