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Globally, Mu'In (معین
, מועין
, Муин
) is a rare masculine forename. The forename Mu'In is characteristic of Afghanistan, where it is a rare masculine name, Iran, and Saudi Arabia, where it is a very rare male name. In absolute terms, it most frequently occurs in Afghanistan, Iran, and Indonesia. Likewise, Mu'In is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| معین | Afghanistan, Saudi Arabia, Iran |
| מועין | Israel |
| Муин | Kazakhstan, Kyrgyzstan, Russia |
| Mu'In | Malaysia, Indonesia |