Surname Callihan (Callihan 
) , across the world, is quite a rare cognomen. The cognomen Callihan is habitual in the United States, where it is a rare surname, Canada, where it is a very rare surname, and Venezuela.
| VARIANT | COUNTRY |
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| Callihan | United Kingdom, Canada, India, Venezuela, United States |
| anne worthington callihan American artist, US (b. 1880) |
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| bill callihan American football player (1916-1986), US (b. 1916) |
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sami callihan American professional wrestler, US (b. 1987) |
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| mike callihan American politician, US (b. 1947) |
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| robert scott callihan Ph.D. Air Force Institute of Technology 2011 |
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