Family name ศิรพงษ์สมบัติ (ศิรพงษ์สมบัติ 
, Siraphongsombat , Siraphongsombut ) , worldwide, is a rare cognomen. The family name ศิรพงษ์สมบัติ is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| ศิรพงษ์สมบัติ, Siraphongsombut, Siraphongsombat | Thailand |