Last name Siegfriedt (Siegfriedt 
) , in all the world, is a rare cognomen. The last name Siegfriedt is habitual in France, where it is a very rare surname, Germany, and New Zealand. Measured by absolute frequency, it most frequently occurs in Germany, France, and the United States. Very seldom, Siegfriedt is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Siegfriedt | Germany, South Africa, United States, Canada, France |
| ludolf siegfriedt DE (b. 1650) |
|
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| hubert siegfriedt FR (b. 1960) |
|