Family name Marchessou (Marchessou 
) , across the world, is a very rare surname. The last name Marchessou is habitual in France, where it is a very rare surname, and Canada, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Marchessou | Canada, France |
| léon jean-baptiste marchessou French official, FR (b. 1852) |
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| marcel marchessou FR (b. 1879) |
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| philippe marchessou (b. 1948) |
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| romain marchessou Olympic weightlifter, MC (b. 1985) |
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