Family name Thassy (Thassy 
) , in the world, is a very rare last name. The cognomen Thassy is characteristic of Hungary, where it is a rare surname, and the United States, where it is an extremely rare surname. Much less frequently, Thassy is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Thassy | United States, Hungary, Brazil |
|
thassy gábor HU (b. 1871) |
|
| thassy kristóf politician, HU (b. 1887) |
|
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| thassy jenő Hungarian-American radio editor, HU (b. 1920) |
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