Family name 正鳌 (正鳌 
) , all around the world, is a very rare cognomen. The cognomen 正鳌 is habitual in Eastern Asia, particularly China, where it is an extremely rare surname. More prevalently, 正鳌 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 正鳌 | China |