Family name ซิค (Sik 
, ซิค 
) , in all the world, is a common last name. The cognomen ซิค is characteristic of Taiwan, where it is quite a rare surname, Hungary, and Malaysia. Measured by absolute frequency, it is the most numerous in Eastern Asia, particularly China, South Korea, and Taiwan. Likewise, ซิค is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sik | China, South Korea, Taiwan, Malaysia, India |
| ซิค | Thailand |