Cognomen Richardi (Richardi 
) , worldwide, is quite a rare last name. The cognomen Richardi is habitual in Georgia, where it is quite a rare surname, Argentina, where it is a rare surname, and Tanzania. Not in comparison with a country's population, it is commonest in Brazil, the United States, and Tanzania. Much less frequently, Richardi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Richardi | Indonesia, Brazil, United States, Tanzania, Argentina |
| godfried richardi DE (b. 1629) |
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| reinhard richardi German jurist, DE (b. 1937) |
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| hans-günter richardi German author and journalist, DE (b. 1939) |
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| carl august ferdinand richardi |
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| richard richardi |
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