Across the world, Usako (Usako 
) is a rare primarily feminine, but very seldom masculine forename. The given name Usako is characteristic of Japan, where it is a rare feminine name, Nigeria, where it is an extremely rare unisex name, and India. Very seldom, Usako is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Usako | India, Japan, Nigeria, United States, Thailand |