Around the globe, ลูกชาย (Son 
, ลูกชาย 
, Sonsunk ) is a widespread unisex given name. The forename ลูกชาย is characteristic of Macao, where it is quite a common epicene name, Vietnam, where it is quite a common male name, and Hong Kong, where it is quite a rare mostly boy's, but uncommonly feminine name. Measured by absolute frequency, the name is most common in India, Vietnam, and Indonesia. Likewise, ลูกชาย is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Son | Myanmar, South Korea, Vietnam, Indonesia, India |
| Sonsunk, Sonsuth, ลูกชาย | Thailand |
Ason, Lukchai, Sohns, Son On, Sonbood, Sonchangreed, Sonchavised, Sonman, Sonmany, Sonner, Sonpoun, Sonprates, Sons, Sonsalid, Sonsame, Sonsanee, Sonsanor, Sonsawun, Sonsaysing, Sonsayun, Sonse, Sonsin, Sonsing, Sonsit, Sonsnee, Sonsod, Sonsom, Sonsomsook, Sonson, Sonsroy, Sonsueb, Sonsugong, Sonsun, Sonsuparb, Sonsupee, Sont, Sonthed, Sonthem, and Youngson
ลูกชาย is also a prevalent name for the fictitious and mythical characters: son of Zhang Taigong , the Water Margin character; son of Zhou Rui , the Dream of the Red Chamber character; son of Xiangling , the Dream of the Red Chamber character; son of former Shoubei of Chang'an , the Dream of the Red Chamber character and son of Zhou Mama , the Dream of the Red Chamber character, and in many other works.