Family name سيركو (Sirko 
, سيركو 
, Sercu 
) , all around the world, is quite a rare surname. The surname سيركو is characteristic of Bosnia and Herzegovina, where it is quite a rare surname, Belgium, and Hungary. Measured by absolute frequency, this name is the most popular in Belgium, the United States, and Poland. Likewise, سيركو is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sirko | Hungary, Bosnia and Herzegovina, Poland, United States, Ethiopia |
| سيركو | Iraq |
| Sercu | Germany, Canada, France, United States, Belgium |