Family name Laosuangkoon (Laosuangkoon 
) , worldwide, is a very rare cognomen. The surname Laosuangkoon is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Laosuangkoon | Thailand |
Piti, Wanrudee, Ratchanee, and Kwanchanok