Surname Mcdonnel (Mcdonnel 
) , around the world, is a rare last name. The cognomen Mcdonnel is characteristic of Ireland, where it is a rare surname, Australia, and the United States, where it is a very rare surname. Measured by absolute frequency, this name is the most popular in the United States, the United Kingdom, and Australia. Much less frequently, Mcdonnel is the forename as well as the last name.
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| Mcdonnel | Australia, Canada, Ireland, United Kingdom, United States |
Mcdonell, Mcdonnell, Макдоннелл, and Мцдоннел
| charles francis mcdonnel Roman Catholic clergyman (b. 1770) |
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| kevin mcdonnel college basketball player (1976–1976) Hofstra |
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| david mcdonnel journalist |
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| samantha j mcdonnel researcher |
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