Surname Mcconnaughey (Mcconnaughey 
) , in all the world, is a rare last name. The cognomen Mcconnaughey is habitual in the United States, where it is a rare surname, New Zealand, where it is a very rare surname, and Canada. Not in comparison with a country's population, it is the most numerous in the United States, Germany, and Canada.
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| Mcconnaughey | Germany, Canada, New Zealand, United States, United Kingdom |
| ralph mcconnaughey American baseball player (1889-1966), US (b. 1889) |
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| george mcconnaughey American politician, US (b. 1897) |
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| shannon mcconnaughey researcher (ORCID 0000-0003-1170-8939) |
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| robert a mcconnaughey researcher |
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