Cognomen Gernay (Gernay 
) , globally, is a rare family name. The cognomen Gernay is habitual in Belgium, where it is quite a rare surname, France, where it is a very rare surname, and the United States, where it is an extremely rare surname. Very seldom, Gernay is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Gernay | United Kingdom, Belgium, South Africa, United States, France |
| pierre-noël gernay (b. 1801) |
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| damien gernay Belgian designer, BE (b. 1975) |
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| thomas gernay researcher ORCID ID = 0000-0002-3511-9226 |
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| sophie marie gernay researcher |
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Mr, Austin, Bernie, Brenda, Pierre, Romina, Ronald, Daphny, Jeroen, Julien, Thomas, Nicole, Nestor, Félix, Martine, Maurice, Maarten, Morgane, Bernard, Pauline, Richard, Gaëlle, Ashley, Simona, Michel, Flore, Ms, Aya, Ron, Luc, Joy, Adet, Paul, Ryan, Dean, Dana, Ludovic, Gaã, Jens, Maxim, Chris, Carol, Cathy, Bruno, Diana, Linda, Thijs, Niels, John, and Thierry