Surname Mcguffin (Mcguffin 
) , across the world, is quite a rare last name. The family name Mcguffin is habitual in the United States, where it is a rare surname, Canada, and Ireland. Measured by absolute frequency, the name is most common in the United States, Canada, and the United Kingdom.
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| Mcguffin | Canada, United Kingdom, United States, Ireland, Australia |
| samuel mcguffin British politician (1863-1952), GB (b. 1863) |
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| john mcguffin (b. 1942) |
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| bruce f. mcguffin Ph.D. Princeton University 1986 |
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| dana mcguffin researcher |
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| sarah a mcguffin researcher |
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| liam j. mcguffin researcher |
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| merrylee mcguffin researcher ORCID ID = 0000-0001-5483-4156 |
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| channing mcguffin college basketball player (1991–1993) James Madison |
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| david mcguffin Canadian journalist, CA |
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| gary mcguffin |
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| bruce f. mcguffin |
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| joanie mcguffin |
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| peter mcguffin British psychiatrist and geneticist, GB |
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| meg mcguffin (b. 1993) |
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