Family name Demianowicz (Demianowicz 
) , around the globe, is a very rare surname. The family name Demianowicz is characteristic of Poland, where it is a rare surname, France, where it is an extremely rare surname, and Canada. More prevalently, Demianowicz is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Demianowicz | Poland, Canada, France |
| antoni demianowicz Polish zoologist (1897-1980), PL (b. 1897) |
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| maciej demianowicz Polish researcher, PL |
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