Cognomen Cavanough (Cavanough 
) , globally, is a rare surname. The surname Cavanough is characteristic of Australia, where it is quite a rare surname, New Zealand, where it is a rare surname, and France, where it is an extremely rare surname. Not in comparison with a country's population, the name is most common in Australia, New Zealand, and the United States.
| VARIANT | COUNTRY |
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| Cavanough | Australia, United States, France, Brazil, New Zealand |
| margaret cavanough (b. 1830) |
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| margaret ann cavanough (b. 1831) |
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| mary ann cavanough (b. 1835) |
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| mary cavanough (b. 1837) |
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| katherine cavanough (b. 1841) |
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| elizabeth cavanough (b. 1842) |
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| mary ann cavanough (b. 1861) |
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| harry cavanough Australian rugby league player (b. 1898) |
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| simon cavanough Australian artist, AU (b. 1971) |
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| anthony cavanough |
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Mac, Joel, Jeff, Jill, Tori, Troy, Tina, Neil, Emma, Hugh, Owen, Wade, Marie, Mason, Megan, Miley, Sarah, Shane, Shaun, Susan, Sonya, Steve, John, Jake, Jack, Jane, Sam, Amy, Pam, Ray, Gus, Jim, Tom, Mary, Mark, Matt, Scott, Adam, Paul, Peta, Phil, Ruth, Doug, Gary, Gail, Glen, Lisa, Luke, Kate, and Allan