Cognomen Oldani (Oldani 
) , throughout the world, is quite a rare surname. The last name Oldani is habitual in Switzerland, where it is quite a rare surname, Argentina, and Italy. In absolute terms, it most frequently occurs in Italy, Argentina, and the United States. Very seldom, Oldani is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Oldani | Argentina, Italy, Brazil, United States, Switzerland |
| hermann oldani Swiss politician (1891-1953), CH (b. 1891) |
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| giuseppe oldani Italian boxer, IT (b. 1904) |
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| luigi oldani Roman Catholic bishop (1905-1976) (b. 1905) |
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| enrico oldani Italian painter (1914-1970), IT (b. 1914) |
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| luigi oldani (b. 1909) |
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| alberto oldani Italian association football player, IT (b. 1924) |
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davide oldani IT (b. 1967) |
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| pietro oldani Italian association football player (1929-2012), IT (b. 1929) |
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| bruno oldani artist (1936-2021) (b. 1936) |
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| tullio oldani Italian association football manager and association football player (1939-2008), IT (b. 1939) |
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stefano oldani Italian racing cyclist, IT (b. 1998) |
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| guido oldani (b. 1947) |
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| hervé oldani French politician, FR (b. 1961) |
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| massimo oldani IT (b. 1960) |
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| christof oldani Swiss association football player, CH (b. 1974) |
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