Family name Medici (Medici 
, Médici 
, מדיצ'י 
) , in the entire world, is a common last name. The family name Medici is characteristic of Italy, where it is quite a common surname, Switzerland, where it is quite a rare surname, and Argentina. Not in comparison with a country's population, it is the most numerous in Italy, Argentina, and Brazil. Very seldom, Medici is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Medici | Brazil, Argentina, France, United States, Italy |
| Médici | Brazil, Uruguay, Argentina, France, United States |
| מדיצ'י | Israel |
| Медичи | Russia, Kyrgyzstan |
De' Medici, Dei Medici, Mèdici, Médicis, Катерина, Медици, Медічі, and ยา
| giambuono de' medici (b. 1140) |
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| chiarissimo i de' medici politician (b. 1167) |
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| averardo ii de' medici politician d. 1319, FR (b. 1250) |
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averardo de' medici Italian noble (1320 – 1363, FR (b. 1320) |
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salvestro de' medicis Italian politician (1331-1388), FR (b. 1331) |
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salvestro de' medici, detto chiarissimo politician, FR (b. 1350) |
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| averardo de' medici father of Averardo II de' Medici (13th century) (b. 1300) |
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| vieri de' medici Italian private banker, FR (b. 1323) |
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cosimo di giovanni de' medici First ruler of the Medici political dynasty (1389–1464), IT (b. 1389) |
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| rolando de' medici IT (b. 1330) |
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| giovenco i de' medici - 1320 (b. 1350) |
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| ginevra de' medici (b. 1350) |
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piero di cosimo de' medici Italian nobleman, father of Lorenzo the Magnificent, FR (b. 1416) |
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| averardo di francesco de medici (1373-1434), FR (b. 1373) |
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filippo de' medici Roman Catholic archbishop, FR (b. 1426) |
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