Cognomen Monhardt (Monhardt 
) , in all the world, is a rare family name. The family name Monhardt is habitual in France, where it is a rare surname, Germany, where it is an extremely rare surname, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Monhardt | Germany, France, United States |
| maurice e. monhardt US (b. 1929) |
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| stefan monhardt German author and translator, DE (b. 1963) |
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