Family name Jarnigan (Jarnigan 
) , around the globe, is a rare last name. The cognomen Jarnigan is habitual in the United States, where it is a rare surname, New Zealand, where it is a very rare surname, and Canada, where it is an extremely rare surname.
| VARIANT | COUNTRY |
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| Jarnigan | United States, Venezuela, Mexico, New Zealand, Canada |
| horace jarnigan American baseball player, US (b. 1909) |
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| randy jarnigan college basketball player (1973–1975) Hardin-Simmons |
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| richard m. jarnigan Ph.D. City University of New York 1984 |
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| jeff jarnigan American-football player |
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