Family name 忠瑚 (忠瑚 
) , around the globe, is a very rare surname. The surname 忠瑚 is characteristic of Eastern Asia, particularly China, where it is an extremely rare surname. More prevalently, 忠瑚 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 忠瑚 | China |