Surname 怀玉 (怀玉 
, Huaiyu 
) , in all the world, is quite a rare family name. The cognomen 怀玉 is habitual in Eastern Asia, particularly China, where it is a rare surname. More frequently, 怀玉 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 怀玉 | China |
| Huaiyu | Australia, Canada, Taiwan, United States, China |