Surname Fiek (Fiek 
) , globally, is a rare family name. The last name Fiek is habitual in Germany, where it is a rare surname, Peru, where it is a very rare surname, and Poland. Not in comparison with a country's population, the name is most common in Germany, the United States, and Brazil. Much less frequently, Fiek is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Fiek | Germany, Brazil, United States, Poland, Peru |
| emil fiek botanist (1840-1897) (b. 1840) |
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| wolfgang fiek DE (b. 1936) |
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| friederike fiek |
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| arnold fiek cyclist, DE (b. 1993) |
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Mr, Peter, Renae, Debra, David, Laura, Luisa, Luiza, Joyce, Erica, Helen, Ismar, Marcos, María, Samuel, Stefan, Steven, Alfred, Andrew, Carlos, Cleber, Roxana, Brida, Brian, Cilda, Claus, Ms, Ana, Rod, Jay, Alma, Reta, Ruth, Dale, Doug, Gaby, Renata, John, Timm, Hans, Vera, Igor, Iuri, Otto, Urte, Maria, Marã, Shane, Judd, and Delina