Cognomen หลัก (Main 
, Lak 
, หลัก 
) , in the entire world, is a common surname. The last name หลัก is characteristic of Guernsey, where it is quite a common surname, Myanmar, and Isle of Man (explore the name in all countries). Measured by absolute frequency, it is commonest in Myanmar, the United States, and India. Likewise, หลัก is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Main | United States, Bangladesh, Pakistan, India, Myanmar |
| Lak | United Kingdom, United States, Pakistan, India, Myanmar |
| หลัก | Thailand |
| Lakj | United States |
Hlak, Lakdi, Lakhak, Lakkha, Lakrun, Mainah, Maind, Mainual, Staphanics, and Stapholdeja