Family name สิริเอก (Siri 
, สิริเอก ) , across the world, is a common cognomen. The last name สิริเอก is characteristic of Latin America and the Caribbean, particularly Uruguay, where it is quite a common surname, the Dominican Republic, where it is quite a rare surname, and Argentina. Measured by absolute frequency, it most frequently occurs in Thailand, India, and Indonesia. Also, สิริเอก is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Siri | Norway, Thailand, Argentina, India, Indonesia |
| สิริเอก | Thailand |