Surname Jongkasikam (Jongkasikam 
) , worldwide, is a very rare cognomen. The last name Jongkasikam is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Jongkasikam | Thailand |
Pradab, Sittipong, and Phattaravadee