Surname Firebaugh (Firebaugh 
) , around the world, is a rare family name. The cognomen Firebaugh is habitual in the United States, where it is a rare surname, New Zealand, where it is a very rare surname, and Canada. Measured by absolute frequency, it is commonest in the United States, Canada, and the United Kingdom.
| VARIANT | COUNTRY |
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| Firebaugh | New Zealand, United Kingdom, United States, Mexico, Canada |
| w. c. firebaugh American librarian (1882-1945), US (b. 1882) |
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| glenn firebaugh American sociologist, US (b. 1948) |
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| marco antonio firebaugh American politician (1966-2006), US (b. 1966) |
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| ariel firebaugh researcher |
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| marie-laure firebaugh researcher |
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