Family name Sialoi (Sialoi 
) , globally, is a very rare surname. The last name Sialoi is habitual in Tanzania, where it is a very rare surname, Canada, where it is an extremely rare surname, and the United States. Very seldom, Sialoi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sialoi | United States, Canada, Tanzania |