Cognomen 恺笠 (恺笠 
) , across the world, is a very rare last name. The surname 恺笠 is habitual in Eastern Asia, particularly China, where it is an extremely rare surname. More prevalently, 恺笠 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 恺笠 | China |