Cognomen Sliwo (Sliwo 
) , all over the world, is a very rare family name. The surname Sliwo is habitual in Sweden, where it is a rare surname, Australia, where it is a very rare surname, and Canada, where it is an extremely rare surname. In absolute terms, this name is the most popular in Sweden, Australia, and the United States. Very seldom, Sliwo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sliwo | Australia, Canada, United States, Philippines, Sweden |