Last name เกลี้ยงนิล (เกลี้ยงนิล, Kliangnil 
) , around the world, is a very rare family name. The cognomen เกลี้ยงนิล is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kliangnil | Thailand |