Cognomen Sialou (Sialou 
) , globally, is a rare last name. The surname Sialou is habitual in Cyprus, where it is quite a common surname, Ivory Coast, where it is quite a rare surname, and Greece, where it is a very rare surname. Much less frequently, Sialou is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sialou | France, Ivory Coast, Greece, United States, Cyprus |
| androula sialou Cypriot hurdler, CY (b. 1973) |
|