Surname Sinaidi (Sinaidi 
) , globally, is a very rare family name. The family name Sinaidi is habitual in Oman, where it is a rare surname, Greece, where it is a very rare surname, and Venezuela, where it is an extremely rare surname. Measured by absolute frequency, this name is the most popular in Oman, Brazil, and Greece. Much less frequently, Sinaidi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sinaidi | Greece, Oman, Brazil, India, Venezuela |