Surname Castelino (Castelino 
) , globally, is quite a rare cognomen. The last name Castelino is characteristic of Western Asia, particularly United Arab Emirates, where it is quite a common surname, Bahrain, where it is quite a rare surname, and Kuwait. Measured by absolute frequency, it most frequently occurs in India, United Arab Emirates, and the United States. Very seldom, Castelino is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Castelino | Kuwait, United States, India, United Arab Emirates, Oman |
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adline castelino Indian model and beauty pageant titleholder, IN (b. 1998) |
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janalynn castelino singer-songwriter (b. 1998) |
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| mark g. castelino (b. 1946) |
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| darryl castelino Indian Air Force officer, IN (b. 1975) |
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| madhura castelino researcher ORCID ID = 0000-0002-2724-0122 |
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| flavia v castelino researcher |
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| ronald castelino researcher (ORCID 0000-0002-5128-7115) |
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| roshan castelino researcher (ORCID 0000-0003-1685-1603) |
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| monica castelino actor, IN (b. 1982) |
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