Cognomen Diefenthal (Diefenthal 
) , all over the world, is a rare family name. The surname Diefenthal is habitual in Germany, where it is a rare surname, France, and Hungary, where it is a very rare surname. In absolute terms, it is the most numerous in Germany, France, and the United States. Much less frequently, Diefenthal is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Diefenthal | Netherlands, Hungary, United States, Germany, France |
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josef diefenthal SS officer, DE (b. 1915) |
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| bernhardine diefenthal holocaust victim, b. 1871-03-16, DE (b. 1871) |
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| louis diefenthal Dutch publisher of black and white local view-cards and color collotypes active in Amsterdam in 1903-1913, NL (b. 1873) |
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| eduard henri diefenthal NL (b. 1880) |
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gerard diefenthal actor, DE (b. 1966) |
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frédéric diefenthal French actor, FR (b. 1968) |
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| helmut diefenthal German radiologist (b. 1924) |
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| marianne liselotte diefenthal (1925-1977) (b. 1925) |
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| peter diefenthal Peerage person ID=112615 |
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Mr, Georg, Laura, James, Josef, Julia, Tammy, Nancy, Ellen, Heinz, Frank, Willi, Monika, Michel, Sylvie, Pierre, Dieter, Gerard, George, Thomas, Tobias, Edward, Gayla, Helmut, David, Peter, Ms, Jo, Kay, Geo, Tom, Uwe, Anne, Ralf, Dale, John, Theo, Eric, Hans, Faye, Fred, Maria, Alain, Blume, Karin, Kelly, Petra, Randy, and Fabien