Cognomen 鸿梓 (鸿梓 
) , in the entire world, is a very rare surname. The family name 鸿梓 is habitual in Eastern Asia, particularly China, where it is an extremely rare surname. More prevalently, 鸿梓 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 鸿梓 | China |