Cognomen Crudden (Crudden 
) , around the world, is a rare surname. The last name Crudden is habitual in Ireland, where it is quite a rare surname, the United Kingdom, where it is a rare surname, and Australia. In absolute terms, it is the most numerous in Ireland, the United States, and the United Kingdom.
| VARIANT | COUNTRY |
|---|---|
| Crudden | Australia, Ireland, Canada, United States, United Kingdom |
| caitrin crudden researcher |
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| maelíosa t c mc crudden researcher (ORCID 0000-0001-8330-3370) |
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| cathleen crudden Canadian chemist, CA |
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| cathleen m crudden researcher |
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