Cognomen 凡楷 (凡楷 
) , all around the world, is a very rare last name. The family name 凡楷 is characteristic of Eastern Asia, particularly China, where it is an extremely rare surname. More frequently, 凡楷 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 凡楷 | China |