Cognomen Delley (Delley 
) , across the world, is a rare surname. The surname Delley is habitual in Switzerland, where it is quite a rare surname, Australia, where it is a rare surname, and France, where it is a very rare surname. Measured by absolute frequency, the name is most common in Switzerland, the United States, and France. Very seldom, Delley is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Delley | Australia, Switzerland, United States, Argentina, France |
| pierre delley Swiss politician (1797-1870), CH (b. 1797) |
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| claude delley (b. 1944) |
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| murielle f delley researcher |
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| cyrille l. delley researcher |
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| marco delley association football player, CH (b. 1988) |
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| géraldine delley |
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Mr, Starr, Alain, Aimee, Autum, Corey, Billy, Kasie, Kenya, Keith, Steve, Peter, Roddy, Ronay, Derek, Debra, David, Dasha, Diane, Donna, Doris, Pedro, Laura, Sonya, Sabra, Ms, Ana, Guy, Lee, Marc, Mary, Stã, Aude, Paul, Simon, Rose, Luca, Jane, John, Eric, Eula, Frã, Yann, Yvan, Marie, Gale, and Lucas