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Family name Momtahen (Momtahen
) , around the world, is a very rare cognomen. The cognomen Momtahen is habitual in Iran, where it is a very rare surname, Canada, and Germany, where it is an extremely rare surname. Not in comparison with a country's population, it is commonest in Iran, the United States, and Germany.
| VARIANT | COUNTRY |
|---|---|
| Momtahen | United Kingdom, Iran, United States, Germany, Canada |