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Cognomen Haidi (هايدي
, Haidi
, 海弟
) , around the world, is quite a common surname. The last name Haidi is habitual in Libya, where it is quite a rare surname, Egypt, and Malaysia. Not in comparison with a country's population, it most frequently occurs in Egypt, Indonesia, and China. More frequently, Haidi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| هايدي | Iraq, Egypt, Sudan, Libya, Syria |
| Haidi | Egypt, Malaysia, Indonesia, China, Morocco |
| 海弟 | China |
| Хайди | Kyrgyzstan, Russia |