Last name 简 (Gang 
, Chien , 简 , along with others...) , in the entire world, is a widespread surname. The last name 简 is habitual in Cayman Islands, where it is a common surname, Malaysia, where it is quite a common surname, and Taiwan (explore the name in all countries). Measured by absolute frequency, this name is the most popular in China, Malaysia, and Taiwan. Much less frequently, 简 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Chien, Gang | China, Vietnam, Malaysia, Taiwan, India |
| 简 | China |
| Giản | Vietnam |
| 간 | South Korea |
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