Last name Saiyud (Saiyud 
) , worldwide, is a rare surname. The cognomen Saiyud is habitual in Thailand, where it is a rare surname, Malaysia, where it is a very rare surname, and the United States, where it is an extremely rare surname. Measured by absolute frequency, it is commonest in Thailand, India, and the United States. Likewise, Saiyud is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Saiyud | Malaysia, Thailand, India, United States, Singapore |