Cognomen ვაჩნაძე (ვაჩნაძე, Wacznadze 
, Vachnadze 
) , in the entire world, is a very rare surname. The surname ვაჩნაძე is characteristic of Georgia, where it is a rare surname, France, where it is a very rare surname, and Russia, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Wacznadze | France, United Kingdom |
| Vachnadze | Germany, Russia, Spain, Georgia, United States |
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დავით ვაჩნაძე politician, GE (b. 1884) |
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ნატო ვაჩნაძე Soviet actress (1904-1953), PL (b. 1904) |
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| ილია ვაჩნაძე GE (b. 1949) |
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