Cognomen 鸿璋 (鸿璋 
) , worldwide, is a rare last name. The cognomen 鸿璋 is characteristic of Eastern Asia, particularly China, where it is an extremely rare surname. More prevalently, 鸿璋 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 鸿璋 | China |