Surname Mwei (Mwei 
) , throughout the world, is quite a rare cognomen. The family name Mwei is characteristic of Kenya, where it is quite a rare surname, Malaysia, where it is a rare surname, and Myanmar, where it is a very rare surname. Much less frequently, Mwei is the forename as well as the last name.
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| Mwei | Myanmar, Malaysia, Nigeria, United States, Kenya |
| mwei kaw chief Queen of Martaban–Hanthawaddy, MM |
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| mwei auk Queen of the Northern Palace of Hanthawaddy |
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| mwei zeik Queen of Martaban–Hanthawaddy, MM |
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| mwei thin 14th-century Burmese queen consort, MM |
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| mwei daw principal queen of King Binnya U of Hanthawaddy, and the mother of King Razadarit, MM |
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| mwei ma-gu-thauk Queen of Hanthawaddy |
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| mwei it chief Queen of Martaban, MM |
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| mwei ohn-naung chief queen consort of Hanthawaddy |
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| reuben mwei Kenyan distance runner, KE (b. 1985) |
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