Family name Dedò (Dedò 
) , in the entire world, is an extremely rare surname. The last name Dedò is habitual in Southern Europe, particularly Italy, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Dedò | Italy |
| modesto dedò Italian mathematician (1914-1991), IT (b. 1914) |
|
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| maria dedò Italian mathematician and university teacher, IT |
|