Cognomen Каншао (Каншао 
, Kanchao 
) , across the world, is an extremely rare surname. The cognomen Каншао is habitual in Northern America, particularly the United States, where it is an extremely rare surname. More prevalently, Каншао is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Каншао | Russia |
| Kanchao | China, United States, Philippines |