Across the world, จักจั่น (Jakjan 
, จักจั่น, Jakq ) is an extremely rare male forename. Much more prevalently, จักจั่น is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Jakjan | India, Estonia, Thailand |
| Jakq | Thailand |
| Cichra | China, Czechia, United States, Canada, Slovakia |
Chakchan, Chakkachan, Ciccardi, Cjak, Jakchaiung, Jakchalat, Jakchan, Jakchookiat, Jakjaan, and Jakkea