Last name Mcclennon (Mcclennon 
) , in the world, is a rare surname. The cognomen Mcclennon is characteristic of the United Kingdom, where it is a rare surname, Canada, and the United States, where it is a very rare surname. Much less frequently, Mcclennon is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mcclennon | United Kingdom, Australia, United States, Canada, New Zealand |
| george mcclennon American clarinetist, US (b. 1900) |
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| james mcclennon Footballer (1900-1971), GB (b. 1900) |
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| sheila mcclennon British radio presenter, GB (b. 1960) |
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