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Family name Ditommaso (Ditommaso
) , all over the world, is quite a rare surname. The cognomen Ditommaso is habitual in Italy, where it is a rare surname, Switzerland, and the United States. In absolute terms, it most frequently occurs in the United States, Italy, and Canada.
| VARIANT | COUNTRY |
|---|---|
| Ditommaso | Canada, Italy, Switzerland, France, United States |