Cognomen Shiuko (Shiuko 
, Сиуко 
) , all around the world, is an extremely rare last name. The surname Shiuko is characteristic of Eastern Europe, particularly Russia, where it is an extremely rare surname. More prevalently, Shiuko is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Shiuko | Japan, Brazil, United States |
| Сиуко | Russia |