Family name Rudolph (Rudolph 
, Рудольф 
, רודולף 
, and others...) , globally, is a common cognomen. The last name Rudolph is habitual in Germany, where it is quite a common surname, Armenia, and Israel, where it is quite a rare surname. In absolute terms, it is the most numerous in Germany, the United States, and South Africa. Likewise, Rudolph is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rudolph | Ghana, South Africa, United States, Germany, Canada |
| Рудольф | Kazakhstan, Ukraine, Belarus, Azerbaijan, Russia |
| רודולף | Israel |
| Рудолф | Bulgaria, Ukraine, Russia, Armenia |
Rief, Rieff, Rodolfo, Rodolphe, Roelfes, Roelfs, Rohleff, Rohlf, Rohlof, Rohloff, Roleff, Rolf, Rolffs, Rolfs, Rolof, Roloff, Rolofs, Roolf, Roolfs, Rottloff, Rottluf, Rottluff, Rudlof, Rudloff, Rudolf, Rudolff, Rudolfi, Rudolfová, Rudolphi, Rudolphy, Ruedi, Rueff, Ruf, Ruff, Ruhloff, Rulof, Ruloff, Ruoff, Ruttloff, Ruttluff, Ruud, Rölf, Rūdolfs, Риди, Родолф, Родолфо, Родольф, Родольфо, Ролофф, Рудолпх, Рудольфи, Руофф, Руфф, רולף, رودلف, รูดอล์ฟ, როლოვი, and 鲁道夫
| catharina rudolph (b. 1564) |
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| andreas rudolph German architect, mathematician and librarian, DE (b. 1601) |
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| anna catharina rudolph DE (b. 1616) |
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| johann rudolph DE (b. 1652) |
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| anna susanna rudolph PL (b. 1679) |
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| christian friedrich rudolph DE (b. 1692) |
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| johann gustav rudolph (b. 1708) |
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| anton rudolph (b. 1712) |
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| johann christian rudolph DE (b. 1723) |
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| daniel gottlob rudolph (b. 1726) |
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| johann philipp julius rudolph DE (b. 1729) |
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| johann heinrich rudolph German naturalist (1744–1809), AR (b. 1744) |
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georg august rudolph German politician (1816-1893), DE (b. 1816) |
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| august friedrich wilhelm rudolph German classical philologist and teacher, DE (b. 1771) |
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| friedrich ludwig rudolph (b. 1762) |
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