Family name Gradus (Grad 
, Gre 
, Gradus 
) , around the world, is a common last name. The cognomen Gradus is characteristic of Romania, where it is quite a common surname, Slovenia, and United Arab Emirates, where it is quite a rare surname. Measured by absolute frequency, it is commonest in Philippines, the United States, and Romania. Likewise, Gradus is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Grad | United States, Romania, Philippines, Poland, Germany |
| Gre | United States, Mexico, Poland, Germany, Italy |
| Gradus | United Kingdom, United States, Spain, France, Poland |
| Grado | United States, Romania, Mexico, Philippines, Germany |
| gradus ten pas (b. 1833) |
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| gradus andrée NL (b. 1838) |
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| gradus klopman Dutch Righteous Among the Nations, NL (b. 1870) |
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| gradus m. burgers NL (b. 1862) |
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| leopold gradus holocaust victim, b. 1876-08-18, DE (b. 1876) |
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| wilhelmine gradus holocaust victim, b. 1885-08-26, DE (b. 1885) |
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raymond gradus economist from the Netherlands, NL (b. 1962) |
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| gradus antonius gerritsen NL (b. 1917) |
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| gradus van eden NL (b. 1920) |
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| gradus verhaaf NL (b. 1932) |
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| kamila gradus Polish long distance runner, PL (b. 1967) |
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| jaimie l gradus researcher |
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| ronna gradus |
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