Cognomen Havadi (Havadi 
) , worldwide, is quite a rare family name. The surname Havadi is habitual in Hungary, where it is a rare surname, Romania, and India, where it is a very rare surname. Very seldom, Havadi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Havadi | Romania, South Africa, Hungary, India, Greece |
| havadi nagy istván Romanian philosopher, RO (b. 1953) |
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