Around the globe, 研 (研 
) is a common gender-neutral first name. The forename 研 is habitual in Eastern Asia, particularly China, where it is quite a rare unisex name. Very seldom, 研 is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| 研 | China |
| 研ナオコ Japanese singer, personality, actress, comedyenne (1953-), JP (b. 1953) |
|