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Surname Mclafferty (Mclafferty
) , globally, is a rare cognomen. The family name Mclafferty is habitual in Ireland, where it is a rare surname, the United Kingdom, and Canada. Measured by absolute frequency, it most frequently occurs in the United States, the United Kingdom, and Canada.
| VARIANT | COUNTRY |
|---|---|
| Mclafferty | Australia, United Kingdom, United States, Canada, Ireland |