Cognomen Blanzy (Blanzy 
) , in all the world, is a rare family name. The cognomen Blanzy is characteristic of the United States, where it is a very rare surname, and France. Much less frequently, Blanzy is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Blanzy | India, France, United States |
| armand roland bignon de blanzy FR (b. 1666) |
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| jérôme bignon de blanzy FR (b. 1698) |
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| louis-claude danré de blanzy French judge, FR (b. 1710) |
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| jeff blanzy college basketball player (1981–1981) Eastern Michigan |
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| jeff blanzy college basketball player (1983–1983) Niagara |
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Ms, Jeff, Tara, Megan, Sarah, Susan, Sonya, Steve, Stacy, Scott, Alexa, Alisa, Aaron, Chloe, Caren, Cathy, Clark, Craig, Bobbi, Brian, Karen, Kevin, Jean, Joan, John, Jaye, Sam, Ann, Ben, Kay, Ken, Dan, Don, Lee, Tom, Mary, Paige, Mark, Mike, Sara, Stan, Anna, Paul, Rick, Russ, Ryan, Dean, Lisa, Matt, and Derek