Surname Gruger (Gruger 
) , around the world, is a rare cognomen. The surname Gruger is habitual in Argentina, where it is a rare surname, Switzerland, and Romania. Not in comparison with a country's population, the name is most common in Argentina, Brazil, and the United States. Much less frequently, Gruger is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Gruger | Argentina, Brazil, France, Germany, United States |
| frederic rodrigo gruger American illustrator (1871-1953), US (b. 1871) |
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| audrey gruger American politician, US |
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| audrey lindgren gruger American politician |
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Mr, Ines, Iria, Ildo, Walt, Marco, Marli, Megan, Mirta, Sandi, Fred, Sally, Steve, Alice, Anita, Ariel, Amber, Carla, Catia, Cesar, Clara, Shane, Hugo, Enzo, Erni, Ana, Ann, Jon, Joe, Tom, Ida, Seli, Alan, Arno, Rudy, Ryan, Dave, Gord, Lisa, Luis, Joel, Jeff, Tais, Neil, Eden, Erin, Claci, and Berta