Surname Rattar (Rattar 
) , around the globe, is a very rare last name. The cognomen Rattar is characteristic of Southern Asia, particularly Pakistan, where it is a very rare surname, and India, where it is an extremely rare surname. Likewise, Rattar is the forename as well as the last name.
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| Rattar | India, Pakistan, United States, Thailand |
| william sinclair of rattar, 10th earl of caithness Scottish peer (b. 1727) |
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| john sinclair of rattar (died 1714) |
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| william sinclair of rattar Peerage person ID=198563 |
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| william sinclair of rattar Peerage person ID=593751 |
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