Surname O'Cinneide (O'Cinneide 
) , in the entire world, is a very rare last name. The cognomen O'Cinneide is characteristic of Ireland, where it is a rare surname, the United Kingdom, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| O'Cinneide | Ireland, United Kingdom, United States |
O'Cinnéide, and Ó'Cinnéide
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c.s. o'cinneide Canadian author, CA |
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| colm o'cinneide professor |
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| colm art o'cinneide Ph.D. University of Kentucky 1982 |
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