Last name Siamai (Siamai 
) , in the entire world, is an extremely rare cognomen. The last name Siamai is habitual in Singapore, where it is a rare surname, and India, where it is an extremely rare surname. Also, Siamai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Siamai | Singapore, India, United States |