Throughout the world, นิโคลัส (Nickolas 
, Nicolus 
, Nicoles 
) is a common male forename. The given name นิโคลัส is habitual in the United States, where it is quite a rare male name, Cyprus, and Brazil. Measured by absolute frequency, it is commonest in the United States, Brazil, and Indonesia. Very seldom, นิโคลัส is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Nickolas | Indonesia, South Africa, Kenya, United States, Brazil |
| Nicolus | South Africa, Kenya, Nigeria, United States, Tanzania |
| Nicoles | South Africa, Malaysia, Nigeria, United States, Democratic Republic of the Congo |
| นิโคลัส | Thailand |