Cognomen Stsiapanau (Stsiapanau 
) , around the globe, is a rare family name. The cognomen Stsiapanau is habitual in Belarus, where it is a rare surname, Latvia, and Lithuania. In absolute terms, it is the most numerous in Belarus, Czechia, and Latvia.
| VARIANT | COUNTRY |
|---|---|
| Stsiapanau | Belarus, Czechia, Latvia, United States, Lithuania |