Surname Gammans (Gammans 
) , across the world, is a rare family name. The surname Gammans is habitual in Costa Rica, where it is a rare surname, the United Kingdom, and Australia, where it is a very rare surname. In absolute terms, this name is the most popular in the United Kingdom, the United States, and Australia.
| VARIANT | COUNTRY |
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| Gammans | United Kingdom, Australia, Thailand, United States, Costa Rica |
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george henry gammans politician in Massachusetts, US, US (b. 1842) |
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| sir david gammans, 1st baronet British politician (1895-1957), GB (b. 1895) |
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| muriel gammans British Conservative politician (1898-1989), GB (b. 1898) |
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| nicola gammans |
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Mr, Hope, Mandy, Maura, Sarah, Scott, Chris, Carol, Colin, Cerys, Edna, Becky, Patti, Peter, Robyn, Roger, Derek, Debra, Danny, David, Geoff, Kelly, Leigh, June, Jack, Amy, Ben, Lee, Jim, Mary, Mark, Matt, Maya, Mike, John, Andy, Adam, Carl, Paul, Reed, Rhys, Dave, Gary, Liam, Jane, Anna, and Janet