Surname Kearin (Kearin 
) , throughout the world, is a rare cognomen. The cognomen Kearin is habitual in Ireland, where it is a rare surname, Australia, where it is a very rare surname, and the United States. Not in comparison with a country's population, the name is most common in the United States, the United Kingdom, and Ireland. Very seldom, Kearin is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Kearin | United Kingdom, Australia, Ireland, United States, Canada |
| mick kearin Irish footballer, IE (b. 1945) |
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| stephen kearin American voice actor, US (b. 1962) |
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| madeline bourque kearin researcher (ORCID 0000-0002-9721-2004) |
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