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Cognomen Grannum (Grannum
) , in the entire world, is a rare last name. The last name Grannum is characteristic of Latin America and the Caribbean, particularly Barbados, where it is quite a common surname, Antigua and Barbuda, and Trinidad and Tobago, where it is quite a rare surname. Measured by absolute frequency, this name is the most popular in the United States, Barbados, and Trinidad and Tobago.
VARIANT | COUNTRY |
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Grannum | Barbados, United Kingdom, United States, Trinidad and Tobago, Jamaica |