Surname Callam (Callam 
) , globally, is a rare family name. The last name Callam is characteristic of Jamaica, where it is quite a rare surname, New Zealand, where it is a rare surname, and the United Kingdom, where it is a very rare surname. In absolute terms, it most frequently occurs in Jamaica, the United States, and the United Kingdom. Likewise, Callam is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Callam | Australia, Philippines, Jamaica, United Kingdom, United States |
| albert callam German journalist (1887-1956), DE (b. 1887) |
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| neville callam Jamaican minister (b. 1901) |
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| edward callam (b. 1904) |
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| callam benchly Peerage person ID=478463 |
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| christopher s callam researcher (ORCID 0000-0002-7655-2982) |
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| dave callam Scottish rugby union player, GB (b. 1983) |
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| callam michael moore stewart (born 1994) (b. 1994) |
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