Family name Callus (Callum 
, Callus ) , around the world, is quite a rare last name. The surname Callus is habitual in Malta, where it is a common surname, Jamaica, where it is quite a common surname, and Australia, where it is quite a rare surname. In absolute terms, the name is most common in Malta, the United States, and the United Kingdom. More prevalently, Callus is the forename as well as the last name.
| daniel callus 20th-century Maltese philosopher, MT (b. 1888) |
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ashley callus Australian swimmer, Olympic gold medallist, former world record-holder, AU (b. 1979) |
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| sharon callus Maltese international lawn bowler, AU (b. 1956) |
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| jean-paul callus Maltese athletics competitor, MT (b. 1978) |
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| helen callus British musician, GB |
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| anne-marie callus researcher |
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| edward callus researcher |
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| paula callus researcher |
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| claire ann callus researcher (ORCID 0000-0003-3232-9217) |
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| therese callus researcher |
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| ryan callus Maltese politician, MT (b. 1983) |
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