Last name Souvan (Souvan 
, Souvent 
) , in the world, is a rare cognomen. The cognomen Souvan is habitual in Slovenia, where it is a rare surname, France, and Australia, where it is a very rare surname. Measured by absolute frequency, it is commonest in France, Slovenia, and the United States. Also, Souvan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Souvan | Australia, France, United States, India, Slovenia |
| Souvent | France, United Kingdom, United States |
| franc ks. souvan SI (b. 1799) |
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| ferdinand souvan merchant, SI (b. 1826) |
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| franc ks. souvan SI (b. 1826) |
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| ivan souvan SI (b. 1848) |
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ferry souvan Slovene songwriter, SI (b. 1919) |
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| ferdinand souvan diplomat, SI (b. 1870) |
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| nada souvan |
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