Last name Sisz (Sisz 
) , in all the world, is a very rare family name. The surname Sisz is habitual in Singapore, where it is a rare surname, Myanmar, where it is a very rare surname, and Brazil, where it is an extremely rare surname. In absolute terms, this name is the most popular in Myanmar, China, and Singapore.
| VARIANT | COUNTRY |
|---|---|
| Sisz | Singapore, Brazil, Myanmar, United States, China |