Around the globe, 孝愚 (孝愚 
) is a very rare gender-neutral forename. The forename 孝愚 is habitual in Eastern Asia, particularly China, where it is an extremely rare epicene name. Very seldom, 孝愚 is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| 孝愚 | China |